update referenced filenames from namespace to box

1 files changed, 303 insertions, 303 deletions

diff --git a/depend b/depend
index c908bb6b01..569f14a04d 100644
--- a/depend
+++ b/depend
@@ -63,6 +63,7 @@ array.$(OBJEXT): $(top_srcdir)/internal/array.h
 array.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 array.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 array.$(OBJEXT): $(top_srcdir)/internal/bits.h
+array.$(OBJEXT): $(top_srcdir)/internal/box.h
 array.$(OBJEXT): $(top_srcdir)/internal/class.h
 array.$(OBJEXT): $(top_srcdir)/internal/compar.h
 array.$(OBJEXT): $(top_srcdir)/internal/compilers.h
@@ -71,7 +72,6 @@ array.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 array.$(OBJEXT): $(top_srcdir)/internal/gc.h
 array.$(OBJEXT): $(top_srcdir)/internal/hash.h
 array.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-array.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 array.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 array.$(OBJEXT): $(top_srcdir)/internal/object.h
 array.$(OBJEXT): $(top_srcdir)/internal/proc.h
@@ -286,12 +286,12 @@ ast.$(OBJEXT): $(top_srcdir)/internal/array.h
 ast.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 ast.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 ast.$(OBJEXT): $(top_srcdir)/internal/bits.h
+ast.$(OBJEXT): $(top_srcdir)/internal/box.h
 ast.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 ast.$(OBJEXT): $(top_srcdir)/internal/complex.h
 ast.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 ast.$(OBJEXT): $(top_srcdir)/internal/gc.h
 ast.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-ast.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 ast.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 ast.$(OBJEXT): $(top_srcdir)/internal/parse.h
 ast.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -526,13 +526,13 @@ bignum.$(OBJEXT): $(top_srcdir)/internal/array.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/bits.h
+bignum.$(OBJEXT): $(top_srcdir)/internal/box.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/class.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/complex.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/gc.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-bignum.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/object.h
 bignum.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -729,6 +729,251 @@ bignum.$(OBJEXT): {$(VPATH)}thread_native.h
 bignum.$(OBJEXT): {$(VPATH)}util.h
 bignum.$(OBJEXT): {$(VPATH)}vm_core.h
 bignum.$(OBJEXT): {$(VPATH)}vm_opts.h
+box.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
+box.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
+box.$(OBJEXT): $(CCAN_DIR)/list/list.h
+box.$(OBJEXT): $(CCAN_DIR)/str/str.h
+box.$(OBJEXT): $(hdrdir)/ruby/ruby.h
+box.$(OBJEXT): $(top_srcdir)/internal/array.h
+box.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+box.$(OBJEXT): $(top_srcdir)/internal/box.h
+box.$(OBJEXT): $(top_srcdir)/internal/class.h
+box.$(OBJEXT): $(top_srcdir)/internal/compilers.h
+box.$(OBJEXT): $(top_srcdir)/internal/error.h
+box.$(OBJEXT): $(top_srcdir)/internal/eval.h
+box.$(OBJEXT): $(top_srcdir)/internal/file.h
+box.$(OBJEXT): $(top_srcdir)/internal/gc.h
+box.$(OBJEXT): $(top_srcdir)/internal/hash.h
+box.$(OBJEXT): $(top_srcdir)/internal/imemo.h
+box.$(OBJEXT): $(top_srcdir)/internal/load.h
+box.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
+box.$(OBJEXT): $(top_srcdir)/internal/serial.h
+box.$(OBJEXT): $(top_srcdir)/internal/set_table.h
+box.$(OBJEXT): $(top_srcdir)/internal/st.h
+box.$(OBJEXT): $(top_srcdir)/internal/static_assert.h
+box.$(OBJEXT): $(top_srcdir)/internal/string.h
+box.$(OBJEXT): $(top_srcdir)/internal/variable.h
+box.$(OBJEXT): $(top_srcdir)/internal/vm.h
+box.$(OBJEXT): $(top_srcdir)/internal/warnings.h
+box.$(OBJEXT): $(top_srcdir)/prism/ast.h
+box.$(OBJEXT): $(top_srcdir)/prism/defines.h
+box.$(OBJEXT): $(top_srcdir)/prism/diagnostic.h
+box.$(OBJEXT): $(top_srcdir)/prism/encoding.h
+box.$(OBJEXT): $(top_srcdir)/prism/node.h
+box.$(OBJEXT): $(top_srcdir)/prism/options.h
+box.$(OBJEXT): $(top_srcdir)/prism/pack.h
+box.$(OBJEXT): $(top_srcdir)/prism/parser.h
+box.$(OBJEXT): $(top_srcdir)/prism/prettyprint.h
+box.$(OBJEXT): $(top_srcdir)/prism/prism.h
+box.$(OBJEXT): $(top_srcdir)/prism/regexp.h
+box.$(OBJEXT): $(top_srcdir)/prism/static_literals.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_buffer.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_char.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_constant_pool.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_integer.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_list.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_memchr.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_newline_list.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_string.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_strncasecmp.h
+box.$(OBJEXT): $(top_srcdir)/prism/util/pm_strpbrk.h
+box.$(OBJEXT): $(top_srcdir)/prism/version.h
+box.$(OBJEXT): {$(VPATH)}assert.h
+box.$(OBJEXT): {$(VPATH)}atomic.h
+box.$(OBJEXT): {$(VPATH)}backward/2/assume.h
+box.$(OBJEXT): {$(VPATH)}backward/2/attributes.h
+box.$(OBJEXT): {$(VPATH)}backward/2/bool.h
+box.$(OBJEXT): {$(VPATH)}backward/2/gcc_version_since.h
+box.$(OBJEXT): {$(VPATH)}backward/2/inttypes.h
+box.$(OBJEXT): {$(VPATH)}backward/2/limits.h
+box.$(OBJEXT): {$(VPATH)}backward/2/long_long.h
+box.$(OBJEXT): {$(VPATH)}backward/2/stdalign.h
+box.$(OBJEXT): {$(VPATH)}backward/2/stdarg.h
+box.$(OBJEXT): {$(VPATH)}box.c
+box.$(OBJEXT): {$(VPATH)}config.h
+box.$(OBJEXT): {$(VPATH)}constant.h
+box.$(OBJEXT): {$(VPATH)}darray.h
+box.$(OBJEXT): {$(VPATH)}debug_counter.h
+box.$(OBJEXT): {$(VPATH)}defines.h
+box.$(OBJEXT): {$(VPATH)}encoding.h
+box.$(OBJEXT): {$(VPATH)}eval_intern.h
+box.$(OBJEXT): {$(VPATH)}id.h
+box.$(OBJEXT): {$(VPATH)}id_table.h
+box.$(OBJEXT): {$(VPATH)}intern.h
+box.$(OBJEXT): {$(VPATH)}internal.h
+box.$(OBJEXT): {$(VPATH)}internal/abi.h
+box.$(OBJEXT): {$(VPATH)}internal/anyargs.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/char.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/double.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/fixnum.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/gid_t.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/int.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/intptr_t.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/long.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/long_long.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/mode_t.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/off_t.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/pid_t.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/short.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/size_t.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/st_data_t.h
+box.$(OBJEXT): {$(VPATH)}internal/arithmetic/uid_t.h
+box.$(OBJEXT): {$(VPATH)}internal/assume.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/alloc_size.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/artificial.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/cold.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/const.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/constexpr.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/deprecated.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/diagnose_if.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/enum_extensibility.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/error.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/flag_enum.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/forceinline.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/format.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/maybe_unused.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/noalias.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/nodiscard.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/noexcept.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/noinline.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/nonnull.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/noreturn.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/packed_struct.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/pure.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/restrict.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/returns_nonnull.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/warning.h
+box.$(OBJEXT): {$(VPATH)}internal/attr/weakref.h
+box.$(OBJEXT): {$(VPATH)}internal/cast.h
+box.$(OBJEXT): {$(VPATH)}internal/compiler_is.h
+box.$(OBJEXT): {$(VPATH)}internal/compiler_is/apple.h
+box.$(OBJEXT): {$(VPATH)}internal/compiler_is/clang.h
+box.$(OBJEXT): {$(VPATH)}internal/compiler_is/gcc.h
+box.$(OBJEXT): {$(VPATH)}internal/compiler_is/intel.h
+box.$(OBJEXT): {$(VPATH)}internal/compiler_is/msvc.h
+box.$(OBJEXT): {$(VPATH)}internal/compiler_is/sunpro.h
+box.$(OBJEXT): {$(VPATH)}internal/compiler_since.h
+box.$(OBJEXT): {$(VPATH)}internal/config.h
+box.$(OBJEXT): {$(VPATH)}internal/constant_p.h
+box.$(OBJEXT): {$(VPATH)}internal/core.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rarray.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rbasic.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rbignum.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rclass.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rdata.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rfile.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rhash.h
+box.$(OBJEXT): {$(VPATH)}internal/core/robject.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rregexp.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rstring.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rstruct.h
+box.$(OBJEXT): {$(VPATH)}internal/core/rtypeddata.h
+box.$(OBJEXT): {$(VPATH)}internal/ctype.h
+box.$(OBJEXT): {$(VPATH)}internal/dllexport.h
+box.$(OBJEXT): {$(VPATH)}internal/dosish.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/coderange.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/ctype.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/encoding.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/pathname.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/re.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/sprintf.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/string.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/symbol.h
+box.$(OBJEXT): {$(VPATH)}internal/encoding/transcode.h
+box.$(OBJEXT): {$(VPATH)}internal/error.h
+box.$(OBJEXT): {$(VPATH)}internal/eval.h
+box.$(OBJEXT): {$(VPATH)}internal/event.h
+box.$(OBJEXT): {$(VPATH)}internal/fl_type.h
+box.$(OBJEXT): {$(VPATH)}internal/gc.h
+box.$(OBJEXT): {$(VPATH)}internal/glob.h
+box.$(OBJEXT): {$(VPATH)}internal/globals.h
+box.$(OBJEXT): {$(VPATH)}internal/has/attribute.h
+box.$(OBJEXT): {$(VPATH)}internal/has/builtin.h
+box.$(OBJEXT): {$(VPATH)}internal/has/c_attribute.h
+box.$(OBJEXT): {$(VPATH)}internal/has/cpp_attribute.h
+box.$(OBJEXT): {$(VPATH)}internal/has/declspec_attribute.h
+box.$(OBJEXT): {$(VPATH)}internal/has/extension.h
+box.$(OBJEXT): {$(VPATH)}internal/has/feature.h
+box.$(OBJEXT): {$(VPATH)}internal/has/warning.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/array.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/bignum.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/class.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/compar.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/complex.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/cont.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/dir.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/enum.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/enumerator.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/error.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/eval.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/file.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/hash.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/io.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/load.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/marshal.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/numeric.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/object.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/parse.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/proc.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/process.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/random.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/range.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/rational.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/re.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/ruby.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/select.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/select/largesize.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/set.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/signal.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/sprintf.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/string.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/struct.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/thread.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/time.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/variable.h
+box.$(OBJEXT): {$(VPATH)}internal/intern/vm.h
+box.$(OBJEXT): {$(VPATH)}internal/interpreter.h
+box.$(OBJEXT): {$(VPATH)}internal/iterator.h
+box.$(OBJEXT): {$(VPATH)}internal/memory.h
+box.$(OBJEXT): {$(VPATH)}internal/method.h
+box.$(OBJEXT): {$(VPATH)}internal/module.h
+box.$(OBJEXT): {$(VPATH)}internal/newobj.h
+box.$(OBJEXT): {$(VPATH)}internal/scan_args.h
+box.$(OBJEXT): {$(VPATH)}internal/special_consts.h
+box.$(OBJEXT): {$(VPATH)}internal/static_assert.h
+box.$(OBJEXT): {$(VPATH)}internal/stdalign.h
+box.$(OBJEXT): {$(VPATH)}internal/stdbool.h
+box.$(OBJEXT): {$(VPATH)}internal/stdckdint.h
+box.$(OBJEXT): {$(VPATH)}internal/symbol.h
+box.$(OBJEXT): {$(VPATH)}internal/value.h
+box.$(OBJEXT): {$(VPATH)}internal/value_type.h
+box.$(OBJEXT): {$(VPATH)}internal/variable.h
+box.$(OBJEXT): {$(VPATH)}internal/warning_push.h
+box.$(OBJEXT): {$(VPATH)}internal/xmalloc.h
+box.$(OBJEXT): {$(VPATH)}iseq.h
+box.$(OBJEXT): {$(VPATH)}method.h
+box.$(OBJEXT): {$(VPATH)}missing.h
+box.$(OBJEXT): {$(VPATH)}node.h
+box.$(OBJEXT): {$(VPATH)}onigmo.h
+box.$(OBJEXT): {$(VPATH)}oniguruma.h
+box.$(OBJEXT): {$(VPATH)}prism/ast.h
+box.$(OBJEXT): {$(VPATH)}prism/diagnostic.h
+box.$(OBJEXT): {$(VPATH)}prism/version.h
+box.$(OBJEXT): {$(VPATH)}prism_compile.h
+box.$(OBJEXT): {$(VPATH)}ruby_assert.h
+box.$(OBJEXT): {$(VPATH)}ruby_atomic.h
+box.$(OBJEXT): {$(VPATH)}rubyparser.h
+box.$(OBJEXT): {$(VPATH)}shape.h
+box.$(OBJEXT): {$(VPATH)}st.h
+box.$(OBJEXT): {$(VPATH)}subst.h
+box.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
+box.$(OBJEXT): {$(VPATH)}thread_native.h
+box.$(OBJEXT): {$(VPATH)}util.h
+box.$(OBJEXT): {$(VPATH)}vm_core.h
+box.$(OBJEXT): {$(VPATH)}vm_debug.h
+box.$(OBJEXT): {$(VPATH)}vm_opts.h
+box.$(OBJEXT): {$(VPATH)}vm_sync.h
 builtin.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
 builtin.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
 builtin.$(OBJEXT): $(CCAN_DIR)/list/list.h
@@ -736,10 +981,10 @@ builtin.$(OBJEXT): $(CCAN_DIR)/str/str.h
 builtin.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 builtin.$(OBJEXT): $(top_srcdir)/internal/array.h
 builtin.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+builtin.$(OBJEXT): $(top_srcdir)/internal/box.h
 builtin.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 builtin.$(OBJEXT): $(top_srcdir)/internal/gc.h
 builtin.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-builtin.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 builtin.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 builtin.$(OBJEXT): $(top_srcdir)/internal/serial.h
 builtin.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -966,13 +1211,13 @@ class.$(OBJEXT): $(CCAN_DIR)/str/str.h
 class.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 class.$(OBJEXT): $(top_srcdir)/internal/array.h
 class.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+class.$(OBJEXT): $(top_srcdir)/internal/box.h
 class.$(OBJEXT): $(top_srcdir)/internal/class.h
 class.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 class.$(OBJEXT): $(top_srcdir)/internal/eval.h
 class.$(OBJEXT): $(top_srcdir)/internal/gc.h
 class.$(OBJEXT): $(top_srcdir)/internal/hash.h
 class.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-class.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 class.$(OBJEXT): $(top_srcdir)/internal/object.h
 class.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 class.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -1365,6 +1610,7 @@ compile.$(OBJEXT): $(top_srcdir)/internal/array.h
 compile.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 compile.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 compile.$(OBJEXT): $(top_srcdir)/internal/bits.h
+compile.$(OBJEXT): $(top_srcdir)/internal/box.h
 compile.$(OBJEXT): $(top_srcdir)/internal/class.h
 compile.$(OBJEXT): $(top_srcdir)/internal/compile.h
 compile.$(OBJEXT): $(top_srcdir)/internal/compilers.h
@@ -1376,7 +1622,6 @@ compile.$(OBJEXT): $(top_srcdir)/internal/gc.h
 compile.$(OBJEXT): $(top_srcdir)/internal/hash.h
 compile.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 compile.$(OBJEXT): $(top_srcdir)/internal/io.h
-compile.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 compile.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 compile.$(OBJEXT): $(top_srcdir)/internal/object.h
 compile.$(OBJEXT): $(top_srcdir)/internal/parse.h
@@ -1631,6 +1876,7 @@ complex.$(OBJEXT): $(top_srcdir)/internal/array.h
 complex.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 complex.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 complex.$(OBJEXT): $(top_srcdir)/internal/bits.h
+complex.$(OBJEXT): $(top_srcdir)/internal/box.h
 complex.$(OBJEXT): $(top_srcdir)/internal/class.h
 complex.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 complex.$(OBJEXT): $(top_srcdir)/internal/complex.h
@@ -1638,7 +1884,6 @@ complex.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 complex.$(OBJEXT): $(top_srcdir)/internal/gc.h
 complex.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 complex.$(OBJEXT): $(top_srcdir)/internal/math.h
-complex.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 complex.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 complex.$(OBJEXT): $(top_srcdir)/internal/object.h
 complex.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -1845,11 +2090,11 @@ concurrent_set.$(OBJEXT): $(CCAN_DIR)/str/str.h
 concurrent_set.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/array.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+concurrent_set.$(OBJEXT): $(top_srcdir)/internal/box.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/concurrent_set.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/gc.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-concurrent_set.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/serial.h
 concurrent_set.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -2051,13 +2296,13 @@ cont.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 cont.$(OBJEXT): $(hdrdir)/ruby/version.h
 cont.$(OBJEXT): $(top_srcdir)/internal/array.h
 cont.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+cont.$(OBJEXT): $(top_srcdir)/internal/box.h
 cont.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 cont.$(OBJEXT): $(top_srcdir)/internal/cont.h
 cont.$(OBJEXT): $(top_srcdir)/internal/error.h
 cont.$(OBJEXT): $(top_srcdir)/internal/eval.h
 cont.$(OBJEXT): $(top_srcdir)/internal/gc.h
 cont.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-cont.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 cont.$(OBJEXT): $(top_srcdir)/internal/proc.h
 cont.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 cont.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -2294,11 +2539,11 @@ debug.$(OBJEXT): $(CCAN_DIR)/str/str.h
 debug.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 debug.$(OBJEXT): $(top_srcdir)/internal/array.h
 debug.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+debug.$(OBJEXT): $(top_srcdir)/internal/box.h
 debug.$(OBJEXT): $(top_srcdir)/internal/class.h
 debug.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 debug.$(OBJEXT): $(top_srcdir)/internal/gc.h
 debug.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-debug.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 debug.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 debug.$(OBJEXT): $(top_srcdir)/internal/serial.h
 debug.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -2672,6 +2917,7 @@ dir.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 dir.$(OBJEXT): $(hdrdir)/ruby/version.h
 dir.$(OBJEXT): $(top_srcdir)/internal/array.h
 dir.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+dir.$(OBJEXT): $(top_srcdir)/internal/box.h
 dir.$(OBJEXT): $(top_srcdir)/internal/class.h
 dir.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 dir.$(OBJEXT): $(top_srcdir)/internal/dir.h
@@ -2681,7 +2927,6 @@ dir.$(OBJEXT): $(top_srcdir)/internal/file.h
 dir.$(OBJEXT): $(top_srcdir)/internal/gc.h
 dir.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 dir.$(OBJEXT): $(top_srcdir)/internal/io.h
-dir.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 dir.$(OBJEXT): $(top_srcdir)/internal/object.h
 dir.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 dir.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -2883,8 +3128,8 @@ dir.$(OBJEXT): {$(VPATH)}util.h
 dir.$(OBJEXT): {$(VPATH)}vm_core.h
 dir.$(OBJEXT): {$(VPATH)}vm_opts.h
 dln.$(OBJEXT): $(hdrdir)/ruby/ruby.h
+dln.$(OBJEXT): $(top_srcdir)/internal/box.h
 dln.$(OBJEXT): $(top_srcdir)/internal/compilers.h
-dln.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 dln.$(OBJEXT): $(top_srcdir)/internal/warnings.h
 dln.$(OBJEXT): {$(VPATH)}assert.h
 dln.$(OBJEXT): {$(VPATH)}backward/2/assume.h
@@ -4613,6 +4858,7 @@ enumerator.$(OBJEXT): $(top_srcdir)/internal/array.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/bits.h
+enumerator.$(OBJEXT): $(top_srcdir)/internal/box.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/class.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/enumerator.h
@@ -4621,7 +4867,6 @@ enumerator.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/gc.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/hash.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-enumerator.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/range.h
 enumerator.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -4830,6 +5075,7 @@ error.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 error.$(OBJEXT): $(hdrdir)/ruby/version.h
 error.$(OBJEXT): $(top_srcdir)/internal/array.h
 error.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+error.$(OBJEXT): $(top_srcdir)/internal/box.h
 error.$(OBJEXT): $(top_srcdir)/internal/class.h
 error.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 error.$(OBJEXT): $(top_srcdir)/internal/error.h
@@ -4839,7 +5085,6 @@ error.$(OBJEXT): $(top_srcdir)/internal/hash.h
 error.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 error.$(OBJEXT): $(top_srcdir)/internal/io.h
 error.$(OBJEXT): $(top_srcdir)/internal/load.h
-error.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 error.$(OBJEXT): $(top_srcdir)/internal/object.h
 error.$(OBJEXT): $(top_srcdir)/internal/process.h
 error.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -5055,6 +5300,7 @@ eval.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 eval.$(OBJEXT): $(hdrdir)/ruby/version.h
 eval.$(OBJEXT): $(top_srcdir)/internal/array.h
 eval.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+eval.$(OBJEXT): $(top_srcdir)/internal/box.h
 eval.$(OBJEXT): $(top_srcdir)/internal/class.h
 eval.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 eval.$(OBJEXT): $(top_srcdir)/internal/cont.h
@@ -5065,7 +5311,6 @@ eval.$(OBJEXT): $(top_srcdir)/internal/hash.h
 eval.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 eval.$(OBJEXT): $(top_srcdir)/internal/inits.h
 eval.$(OBJEXT): $(top_srcdir)/internal/io.h
-eval.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 eval.$(OBJEXT): $(top_srcdir)/internal/object.h
 eval.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 eval.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -5536,6 +5781,7 @@ gc.$(OBJEXT): $(top_srcdir)/internal/array.h
 gc.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 gc.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 gc.$(OBJEXT): $(top_srcdir)/internal/bits.h
+gc.$(OBJEXT): $(top_srcdir)/internal/box.h
 gc.$(OBJEXT): $(top_srcdir)/internal/class.h
 gc.$(OBJEXT): $(top_srcdir)/internal/compile.h
 gc.$(OBJEXT): $(top_srcdir)/internal/compilers.h
@@ -5549,7 +5795,6 @@ gc.$(OBJEXT): $(top_srcdir)/internal/gc.h
 gc.$(OBJEXT): $(top_srcdir)/internal/hash.h
 gc.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 gc.$(OBJEXT): $(top_srcdir)/internal/io.h
-gc.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 gc.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 gc.$(OBJEXT): $(top_srcdir)/internal/object.h
 gc.$(OBJEXT): $(top_srcdir)/internal/proc.h
@@ -5811,12 +6056,12 @@ goruby.$(OBJEXT): $(top_srcdir)/internal/array.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/bits.h
+goruby.$(OBJEXT): $(top_srcdir)/internal/box.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/complex.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/gc.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-goruby.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/parse.h
 goruby.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -6052,6 +6297,7 @@ hash.$(OBJEXT): $(top_srcdir)/internal/array.h
 hash.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 hash.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 hash.$(OBJEXT): $(top_srcdir)/internal/bits.h
+hash.$(OBJEXT): $(top_srcdir)/internal/box.h
 hash.$(OBJEXT): $(top_srcdir)/internal/class.h
 hash.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 hash.$(OBJEXT): $(top_srcdir)/internal/cont.h
@@ -6059,7 +6305,6 @@ hash.$(OBJEXT): $(top_srcdir)/internal/error.h
 hash.$(OBJEXT): $(top_srcdir)/internal/gc.h
 hash.$(OBJEXT): $(top_srcdir)/internal/hash.h
 hash.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-hash.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 hash.$(OBJEXT): $(top_srcdir)/internal/object.h
 hash.$(OBJEXT): $(top_srcdir)/internal/proc.h
 hash.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -6304,11 +6549,11 @@ imemo.$(OBJEXT): $(CCAN_DIR)/str/str.h
 imemo.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/array.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+imemo.$(OBJEXT): $(top_srcdir)/internal/box.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/class.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/gc.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-imemo.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/object.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 imemo.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -6682,6 +6927,7 @@ io.$(OBJEXT): $(top_srcdir)/internal/array.h
 io.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 io.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 io.$(OBJEXT): $(top_srcdir)/internal/bits.h
+io.$(OBJEXT): $(top_srcdir)/internal/box.h
 io.$(OBJEXT): $(top_srcdir)/internal/class.h
 io.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 io.$(OBJEXT): $(top_srcdir)/internal/encoding.h
@@ -6691,7 +6937,6 @@ io.$(OBJEXT): $(top_srcdir)/internal/gc.h
 io.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 io.$(OBJEXT): $(top_srcdir)/internal/inits.h
 io.$(OBJEXT): $(top_srcdir)/internal/io.h
-io.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 io.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 io.$(OBJEXT): $(top_srcdir)/internal/object.h
 io.$(OBJEXT): $(top_srcdir)/internal/process.h
@@ -6913,13 +7158,13 @@ io_buffer.$(OBJEXT): $(top_srcdir)/internal/array.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/bits.h
+io_buffer.$(OBJEXT): $(top_srcdir)/internal/box.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/error.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/gc.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/io.h
-io_buffer.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 io_buffer.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -7127,6 +7372,7 @@ iseq.$(OBJEXT): $(top_srcdir)/internal/array.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/bits.h
+iseq.$(OBJEXT): $(top_srcdir)/internal/box.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/class.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/compile.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/compilers.h
@@ -7138,7 +7384,6 @@ iseq.$(OBJEXT): $(top_srcdir)/internal/gc.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/hash.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/io.h
-iseq.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/parse.h
 iseq.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -7385,12 +7630,12 @@ jit.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 jit.$(OBJEXT): $(top_srcdir)/internal/array.h
 jit.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 jit.$(OBJEXT): $(top_srcdir)/internal/bits.h
+jit.$(OBJEXT): $(top_srcdir)/internal/box.h
 jit.$(OBJEXT): $(top_srcdir)/internal/class.h
 jit.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 jit.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 jit.$(OBJEXT): $(top_srcdir)/internal/gc.h
 jit.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-jit.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 jit.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 jit.$(OBJEXT): $(top_srcdir)/internal/serial.h
 jit.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -7627,6 +7872,7 @@ load.$(OBJEXT): $(top_srcdir)/internal/array.h
 load.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 load.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 load.$(OBJEXT): $(top_srcdir)/internal/bits.h
+load.$(OBJEXT): $(top_srcdir)/internal/box.h
 load.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 load.$(OBJEXT): $(top_srcdir)/internal/complex.h
 load.$(OBJEXT): $(top_srcdir)/internal/dir.h
@@ -7638,7 +7884,6 @@ load.$(OBJEXT): $(top_srcdir)/internal/gc.h
 load.$(OBJEXT): $(top_srcdir)/internal/hash.h
 load.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 load.$(OBJEXT): $(top_srcdir)/internal/load.h
-load.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 load.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 load.$(OBJEXT): $(top_srcdir)/internal/parse.h
 load.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -8379,6 +8624,7 @@ marshal.$(OBJEXT): $(top_srcdir)/internal/array.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/bits.h
+marshal.$(OBJEXT): $(top_srcdir)/internal/box.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/class.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/encoding.h
@@ -8387,7 +8633,6 @@ marshal.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/gc.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/hash.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-marshal.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/object.h
 marshal.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -8777,11 +9022,11 @@ memory_view.$(OBJEXT): $(CCAN_DIR)/str/str.h
 memory_view.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/array.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+memory_view.$(OBJEXT): $(top_srcdir)/internal/box.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/gc.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/hash.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-memory_view.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/serial.h
 memory_view.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -8988,13 +9233,13 @@ miniinit.$(OBJEXT): $(top_srcdir)/internal/array.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/bits.h
+miniinit.$(OBJEXT): $(top_srcdir)/internal/box.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/complex.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/eval.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/gc.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-miniinit.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/parse.h
 miniinit.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -9243,251 +9488,6 @@ miniinit.$(OBJEXT): {$(VPATH)}vm_opts.h
 miniinit.$(OBJEXT): {$(VPATH)}warning.rb
 miniinit.$(OBJEXT): {$(VPATH)}yjit.rb
 miniinit.$(OBJEXT): {$(VPATH)}zjit.rb
-namespace.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
-namespace.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
-namespace.$(OBJEXT): $(CCAN_DIR)/list/list.h
-namespace.$(OBJEXT): $(CCAN_DIR)/str/str.h
-namespace.$(OBJEXT): $(hdrdir)/ruby/ruby.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/array.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/class.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/compilers.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/error.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/eval.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/file.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/gc.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/hash.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/load.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/namespace.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/serial.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/set_table.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/st.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/static_assert.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/string.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/variable.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/vm.h
-namespace.$(OBJEXT): $(top_srcdir)/internal/warnings.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/ast.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/defines.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/diagnostic.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/encoding.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/node.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/options.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/pack.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/parser.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/prettyprint.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/prism.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/regexp.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/static_literals.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_buffer.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_char.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_constant_pool.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_integer.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_list.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_memchr.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_newline_list.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_string.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_strncasecmp.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/util/pm_strpbrk.h
-namespace.$(OBJEXT): $(top_srcdir)/prism/version.h
-namespace.$(OBJEXT): {$(VPATH)}assert.h
-namespace.$(OBJEXT): {$(VPATH)}atomic.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/assume.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/attributes.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/bool.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/gcc_version_since.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/inttypes.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/limits.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/long_long.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/stdalign.h
-namespace.$(OBJEXT): {$(VPATH)}backward/2/stdarg.h
-namespace.$(OBJEXT): {$(VPATH)}config.h
-namespace.$(OBJEXT): {$(VPATH)}constant.h
-namespace.$(OBJEXT): {$(VPATH)}darray.h
-namespace.$(OBJEXT): {$(VPATH)}debug_counter.h
-namespace.$(OBJEXT): {$(VPATH)}defines.h
-namespace.$(OBJEXT): {$(VPATH)}encoding.h
-namespace.$(OBJEXT): {$(VPATH)}eval_intern.h
-namespace.$(OBJEXT): {$(VPATH)}id.h
-namespace.$(OBJEXT): {$(VPATH)}id_table.h
-namespace.$(OBJEXT): {$(VPATH)}intern.h
-namespace.$(OBJEXT): {$(VPATH)}internal.h
-namespace.$(OBJEXT): {$(VPATH)}internal/abi.h
-namespace.$(OBJEXT): {$(VPATH)}internal/anyargs.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/char.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/double.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/fixnum.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/gid_t.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/int.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/intptr_t.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/long.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/long_long.h
-namespace.$(OBJEXT): {$(VPATH)}internal/arithmetic/mode_t.h
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-namespace.$(OBJEXT): {$(VPATH)}onigmo.h
-namespace.$(OBJEXT): {$(VPATH)}oniguruma.h
-namespace.$(OBJEXT): {$(VPATH)}prism/ast.h
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-namespace.$(OBJEXT): {$(VPATH)}prism/version.h
-namespace.$(OBJEXT): {$(VPATH)}prism_compile.h
-namespace.$(OBJEXT): {$(VPATH)}ruby_assert.h
-namespace.$(OBJEXT): {$(VPATH)}ruby_atomic.h
-namespace.$(OBJEXT): {$(VPATH)}rubyparser.h
-namespace.$(OBJEXT): {$(VPATH)}shape.h
-namespace.$(OBJEXT): {$(VPATH)}st.h
-namespace.$(OBJEXT): {$(VPATH)}subst.h
-namespace.$(OBJEXT): {$(VPATH)}thread_$(THREAD_MODEL).h
-namespace.$(OBJEXT): {$(VPATH)}thread_native.h
-namespace.$(OBJEXT): {$(VPATH)}util.h
-namespace.$(OBJEXT): {$(VPATH)}vm_core.h
-namespace.$(OBJEXT): {$(VPATH)}vm_debug.h
-namespace.$(OBJEXT): {$(VPATH)}vm_opts.h
-namespace.$(OBJEXT): {$(VPATH)}vm_sync.h
 node.$(OBJEXT): $(CCAN_DIR)/check_type/check_type.h
 node.$(OBJEXT): $(CCAN_DIR)/container_of/container_of.h
 node.$(OBJEXT): $(CCAN_DIR)/list/list.h
@@ -9495,11 +9495,11 @@ node.$(OBJEXT): $(CCAN_DIR)/str/str.h
 node.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 node.$(OBJEXT): $(top_srcdir)/internal/array.h
 node.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+node.$(OBJEXT): $(top_srcdir)/internal/box.h
 node.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 node.$(OBJEXT): $(top_srcdir)/internal/gc.h
 node.$(OBJEXT): $(top_srcdir)/internal/hash.h
 node.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-node.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 node.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 node.$(OBJEXT): $(top_srcdir)/internal/serial.h
 node.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -9702,6 +9702,7 @@ node_dump.$(OBJEXT): $(top_srcdir)/internal/array.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/bits.h
+node_dump.$(OBJEXT): $(top_srcdir)/internal/box.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/class.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/complex.h
@@ -9709,7 +9710,6 @@ node_dump.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/gc.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/hash.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-node_dump.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/parse.h
 node_dump.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -9918,6 +9918,7 @@ numeric.$(OBJEXT): $(top_srcdir)/internal/array.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/bits.h
+numeric.$(OBJEXT): $(top_srcdir)/internal/box.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/class.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/complex.h
@@ -9926,7 +9927,6 @@ numeric.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/gc.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/hash.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-numeric.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/object.h
 numeric.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -10137,6 +10137,7 @@ object.$(OBJEXT): $(top_srcdir)/internal/array.h
 object.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 object.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 object.$(OBJEXT): $(top_srcdir)/internal/bits.h
+object.$(OBJEXT): $(top_srcdir)/internal/box.h
 object.$(OBJEXT): $(top_srcdir)/internal/class.h
 object.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 object.$(OBJEXT): $(top_srcdir)/internal/error.h
@@ -10145,7 +10146,6 @@ object.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 object.$(OBJEXT): $(top_srcdir)/internal/gc.h
 object.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 object.$(OBJEXT): $(top_srcdir)/internal/inits.h
-object.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 object.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 object.$(OBJEXT): $(top_srcdir)/internal/object.h
 object.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -10364,10 +10364,10 @@ pack.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 pack.$(OBJEXT): $(top_srcdir)/internal/array.h
 pack.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 pack.$(OBJEXT): $(top_srcdir)/internal/bits.h
+pack.$(OBJEXT): $(top_srcdir)/internal/box.h
 pack.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 pack.$(OBJEXT): $(top_srcdir)/internal/gc.h
 pack.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-pack.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 pack.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 pack.$(OBJEXT): $(top_srcdir)/internal/serial.h
 pack.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -10576,6 +10576,7 @@ parse.$(OBJEXT): $(top_srcdir)/internal/array.h
 parse.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 parse.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 parse.$(OBJEXT): $(top_srcdir)/internal/bits.h
+parse.$(OBJEXT): $(top_srcdir)/internal/box.h
 parse.$(OBJEXT): $(top_srcdir)/internal/compile.h
 parse.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 parse.$(OBJEXT): $(top_srcdir)/internal/complex.h
@@ -10586,7 +10587,6 @@ parse.$(OBJEXT): $(top_srcdir)/internal/gc.h
 parse.$(OBJEXT): $(top_srcdir)/internal/hash.h
 parse.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 parse.$(OBJEXT): $(top_srcdir)/internal/io.h
-parse.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 parse.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 parse.$(OBJEXT): $(top_srcdir)/internal/parse.h
 parse.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -12040,6 +12040,7 @@ proc.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 proc.$(OBJEXT): $(hdrdir)/ruby/version.h
 proc.$(OBJEXT): $(top_srcdir)/internal/array.h
 proc.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+proc.$(OBJEXT): $(top_srcdir)/internal/box.h
 proc.$(OBJEXT): $(top_srcdir)/internal/class.h
 proc.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 proc.$(OBJEXT): $(top_srcdir)/internal/error.h
@@ -12047,7 +12048,6 @@ proc.$(OBJEXT): $(top_srcdir)/internal/eval.h
 proc.$(OBJEXT): $(top_srcdir)/internal/gc.h
 proc.$(OBJEXT): $(top_srcdir)/internal/hash.h
 proc.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-proc.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 proc.$(OBJEXT): $(top_srcdir)/internal/object.h
 proc.$(OBJEXT): $(top_srcdir)/internal/proc.h
 proc.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -12287,6 +12287,7 @@ process.$(OBJEXT): $(top_srcdir)/internal/array.h
 process.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 process.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 process.$(OBJEXT): $(top_srcdir)/internal/bits.h
+process.$(OBJEXT): $(top_srcdir)/internal/box.h
 process.$(OBJEXT): $(top_srcdir)/internal/class.h
 process.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 process.$(OBJEXT): $(top_srcdir)/internal/dir.h
@@ -12297,7 +12298,6 @@ process.$(OBJEXT): $(top_srcdir)/internal/gc.h
 process.$(OBJEXT): $(top_srcdir)/internal/hash.h
 process.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 process.$(OBJEXT): $(top_srcdir)/internal/io.h
-process.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 process.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 process.$(OBJEXT): $(top_srcdir)/internal/object.h
 process.$(OBJEXT): $(top_srcdir)/internal/process.h
@@ -12518,6 +12518,7 @@ ractor.$(OBJEXT): $(top_srcdir)/internal/array.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/bits.h
+ractor.$(OBJEXT): $(top_srcdir)/internal/box.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/complex.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/error.h
@@ -12525,7 +12526,6 @@ ractor.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/gc.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/hash.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-ractor.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/object.h
 ractor.$(OBJEXT): $(top_srcdir)/internal/ractor.h
@@ -12750,11 +12750,11 @@ random.$(OBJEXT): $(top_srcdir)/internal/array.h
 random.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 random.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 random.$(OBJEXT): $(top_srcdir)/internal/bits.h
+random.$(OBJEXT): $(top_srcdir)/internal/box.h
 random.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 random.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 random.$(OBJEXT): $(top_srcdir)/internal/gc.h
 random.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-random.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 random.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 random.$(OBJEXT): $(top_srcdir)/internal/random.h
 random.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -13159,13 +13159,13 @@ rational.$(OBJEXT): $(top_srcdir)/internal/array.h
 rational.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 rational.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 rational.$(OBJEXT): $(top_srcdir)/internal/bits.h
+rational.$(OBJEXT): $(top_srcdir)/internal/box.h
 rational.$(OBJEXT): $(top_srcdir)/internal/class.h
 rational.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 rational.$(OBJEXT): $(top_srcdir)/internal/complex.h
 rational.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 rational.$(OBJEXT): $(top_srcdir)/internal/gc.h
 rational.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-rational.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 rational.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 rational.$(OBJEXT): $(top_srcdir)/internal/object.h
 rational.$(OBJEXT): $(top_srcdir)/internal/rational.h
@@ -13370,13 +13370,13 @@ re.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 re.$(OBJEXT): $(top_srcdir)/internal/array.h
 re.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 re.$(OBJEXT): $(top_srcdir)/internal/bits.h
+re.$(OBJEXT): $(top_srcdir)/internal/box.h
 re.$(OBJEXT): $(top_srcdir)/internal/class.h
 re.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 re.$(OBJEXT): $(top_srcdir)/internal/encoding.h
 re.$(OBJEXT): $(top_srcdir)/internal/gc.h
 re.$(OBJEXT): $(top_srcdir)/internal/hash.h
 re.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-re.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 re.$(OBJEXT): $(top_srcdir)/internal/object.h
 re.$(OBJEXT): $(top_srcdir)/internal/ractor.h
 re.$(OBJEXT): $(top_srcdir)/internal/re.h
@@ -14586,6 +14586,7 @@ ruby.$(OBJEXT): $(top_srcdir)/internal/array.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/bits.h
+ruby.$(OBJEXT): $(top_srcdir)/internal/box.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/class.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/cmdlineopt.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/compilers.h
@@ -14601,7 +14602,6 @@ ruby.$(OBJEXT): $(top_srcdir)/internal/io.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/load.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/loadpath.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/missing.h
-ruby.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/object.h
 ruby.$(OBJEXT): $(top_srcdir)/internal/parse.h
@@ -15032,10 +15032,10 @@ scheduler.$(OBJEXT): $(CCAN_DIR)/str/str.h
 scheduler.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 scheduler.$(OBJEXT): $(top_srcdir)/internal/array.h
 scheduler.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+scheduler.$(OBJEXT): $(top_srcdir)/internal/box.h
 scheduler.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 scheduler.$(OBJEXT): $(top_srcdir)/internal/gc.h
 scheduler.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-scheduler.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 scheduler.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 scheduler.$(OBJEXT): $(top_srcdir)/internal/serial.h
 scheduler.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -15242,12 +15242,12 @@ set.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 set.$(OBJEXT): $(top_srcdir)/internal/array.h
 set.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 set.$(OBJEXT): $(top_srcdir)/internal/bits.h
+set.$(OBJEXT): $(top_srcdir)/internal/box.h
 set.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 set.$(OBJEXT): $(top_srcdir)/internal/error.h
 set.$(OBJEXT): $(top_srcdir)/internal/gc.h
 set.$(OBJEXT): $(top_srcdir)/internal/hash.h
 set.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-set.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 set.$(OBJEXT): $(top_srcdir)/internal/proc.h
 set.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 set.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -15612,12 +15612,12 @@ shape.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 shape.$(OBJEXT): $(hdrdir)/ruby/version.h
 shape.$(OBJEXT): $(top_srcdir)/internal/array.h
 shape.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+shape.$(OBJEXT): $(top_srcdir)/internal/box.h
 shape.$(OBJEXT): $(top_srcdir)/internal/class.h
 shape.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 shape.$(OBJEXT): $(top_srcdir)/internal/error.h
 shape.$(OBJEXT): $(top_srcdir)/internal/gc.h
 shape.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-shape.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 shape.$(OBJEXT): $(top_srcdir)/internal/object.h
 shape.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 shape.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -15827,12 +15827,12 @@ signal.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 signal.$(OBJEXT): $(hdrdir)/ruby/version.h
 signal.$(OBJEXT): $(top_srcdir)/internal/array.h
 signal.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+signal.$(OBJEXT): $(top_srcdir)/internal/box.h
 signal.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 signal.$(OBJEXT): $(top_srcdir)/internal/error.h
 signal.$(OBJEXT): $(top_srcdir)/internal/eval.h
 signal.$(OBJEXT): $(top_srcdir)/internal/gc.h
 signal.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-signal.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 signal.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 signal.$(OBJEXT): $(top_srcdir)/internal/serial.h
 signal.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -16594,6 +16594,7 @@ string.$(OBJEXT): $(top_srcdir)/internal/array.h
 string.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 string.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 string.$(OBJEXT): $(top_srcdir)/internal/bits.h
+string.$(OBJEXT): $(top_srcdir)/internal/box.h
 string.$(OBJEXT): $(top_srcdir)/internal/class.h
 string.$(OBJEXT): $(top_srcdir)/internal/compar.h
 string.$(OBJEXT): $(top_srcdir)/internal/compilers.h
@@ -16604,7 +16605,6 @@ string.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 string.$(OBJEXT): $(top_srcdir)/internal/gc.h
 string.$(OBJEXT): $(top_srcdir)/internal/hash.h
 string.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-string.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 string.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 string.$(OBJEXT): $(top_srcdir)/internal/object.h
 string.$(OBJEXT): $(top_srcdir)/internal/proc.h
@@ -16856,13 +16856,13 @@ struct.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 struct.$(OBJEXT): $(hdrdir)/ruby/version.h
 struct.$(OBJEXT): $(top_srcdir)/internal/array.h
 struct.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+struct.$(OBJEXT): $(top_srcdir)/internal/box.h
 struct.$(OBJEXT): $(top_srcdir)/internal/class.h
 struct.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 struct.$(OBJEXT): $(top_srcdir)/internal/error.h
 struct.$(OBJEXT): $(top_srcdir)/internal/gc.h
 struct.$(OBJEXT): $(top_srcdir)/internal/hash.h
 struct.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-struct.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 struct.$(OBJEXT): $(top_srcdir)/internal/object.h
 struct.$(OBJEXT): $(top_srcdir)/internal/proc.h
 struct.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -17072,6 +17072,7 @@ symbol.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 symbol.$(OBJEXT): $(hdrdir)/ruby/version.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/array.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+symbol.$(OBJEXT): $(top_srcdir)/internal/box.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/class.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/concurrent_set.h
@@ -17079,7 +17080,6 @@ symbol.$(OBJEXT): $(top_srcdir)/internal/error.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/gc.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/hash.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-symbol.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/object.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 symbol.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -17298,6 +17298,7 @@ thread.$(OBJEXT): $(hdrdir)/ruby/version.h
 thread.$(OBJEXT): $(top_srcdir)/internal/array.h
 thread.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 thread.$(OBJEXT): $(top_srcdir)/internal/bits.h
+thread.$(OBJEXT): $(top_srcdir)/internal/box.h
 thread.$(OBJEXT): $(top_srcdir)/internal/class.h
 thread.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 thread.$(OBJEXT): $(top_srcdir)/internal/cont.h
@@ -17307,7 +17308,6 @@ thread.$(OBJEXT): $(top_srcdir)/internal/gc.h
 thread.$(OBJEXT): $(top_srcdir)/internal/hash.h
 thread.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 thread.$(OBJEXT): $(top_srcdir)/internal/io.h
-thread.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 thread.$(OBJEXT): $(top_srcdir)/internal/object.h
 thread.$(OBJEXT): $(top_srcdir)/internal/proc.h
 thread.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -17558,13 +17558,13 @@ time.$(OBJEXT): $(top_srcdir)/internal/array.h
 time.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 time.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 time.$(OBJEXT): $(top_srcdir)/internal/bits.h
+time.$(OBJEXT): $(top_srcdir)/internal/box.h
 time.$(OBJEXT): $(top_srcdir)/internal/compar.h
 time.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 time.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 time.$(OBJEXT): $(top_srcdir)/internal/gc.h
 time.$(OBJEXT): $(top_srcdir)/internal/hash.h
 time.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-time.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 time.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 time.$(OBJEXT): $(top_srcdir)/internal/rational.h
 time.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -18138,6 +18138,7 @@ variable.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 variable.$(OBJEXT): $(hdrdir)/ruby/version.h
 variable.$(OBJEXT): $(top_srcdir)/internal/array.h
 variable.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+variable.$(OBJEXT): $(top_srcdir)/internal/box.h
 variable.$(OBJEXT): $(top_srcdir)/internal/class.h
 variable.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 variable.$(OBJEXT): $(top_srcdir)/internal/error.h
@@ -18145,7 +18146,6 @@ variable.$(OBJEXT): $(top_srcdir)/internal/eval.h
 variable.$(OBJEXT): $(top_srcdir)/internal/gc.h
 variable.$(OBJEXT): $(top_srcdir)/internal/hash.h
 variable.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-variable.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 variable.$(OBJEXT): $(top_srcdir)/internal/object.h
 variable.$(OBJEXT): $(top_srcdir)/internal/re.h
 variable.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
@@ -18361,11 +18361,11 @@ version.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 version.$(OBJEXT): $(hdrdir)/ruby/version.h
 version.$(OBJEXT): $(top_srcdir)/internal/array.h
 version.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+version.$(OBJEXT): $(top_srcdir)/internal/box.h
 version.$(OBJEXT): $(top_srcdir)/internal/cmdlineopt.h
 version.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 version.$(OBJEXT): $(top_srcdir)/internal/gc.h
 version.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-version.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 version.$(OBJEXT): $(top_srcdir)/internal/parse.h
 version.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 version.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -18574,6 +18574,7 @@ vm.$(OBJEXT): $(top_srcdir)/internal/array.h
 vm.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 vm.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 vm.$(OBJEXT): $(top_srcdir)/internal/bits.h
+vm.$(OBJEXT): $(top_srcdir)/internal/box.h
 vm.$(OBJEXT): $(top_srcdir)/internal/class.h
 vm.$(OBJEXT): $(top_srcdir)/internal/compar.h
 vm.$(OBJEXT): $(top_srcdir)/internal/compile.h
@@ -18589,7 +18590,6 @@ vm.$(OBJEXT): $(top_srcdir)/internal/hash.h
 vm.$(OBJEXT): $(top_srcdir)/internal/imemo.h
 vm.$(OBJEXT): $(top_srcdir)/internal/inits.h
 vm.$(OBJEXT): $(top_srcdir)/internal/missing.h
-vm.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 vm.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 vm.$(OBJEXT): $(top_srcdir)/internal/object.h
 vm.$(OBJEXT): $(top_srcdir)/internal/parse.h
@@ -18860,12 +18860,12 @@ vm_backtrace.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 vm_backtrace.$(OBJEXT): $(hdrdir)/ruby/version.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/array.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/box.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/class.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/error.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/gc.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/serial.h
 vm_backtrace.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -19096,10 +19096,10 @@ vm_dump.$(OBJEXT): $(CCAN_DIR)/str/str.h
 vm_dump.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 vm_dump.$(OBJEXT): $(top_srcdir)/internal/array.h
 vm_dump.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+vm_dump.$(OBJEXT): $(top_srcdir)/internal/box.h
 vm_dump.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 vm_dump.$(OBJEXT): $(top_srcdir)/internal/gc.h
 vm_dump.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-vm_dump.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 vm_dump.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 vm_dump.$(OBJEXT): $(top_srcdir)/internal/serial.h
 vm_dump.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -19330,10 +19330,10 @@ vm_sync.$(OBJEXT): $(CCAN_DIR)/str/str.h
 vm_sync.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 vm_sync.$(OBJEXT): $(top_srcdir)/internal/array.h
 vm_sync.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+vm_sync.$(OBJEXT): $(top_srcdir)/internal/box.h
 vm_sync.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 vm_sync.$(OBJEXT): $(top_srcdir)/internal/gc.h
 vm_sync.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-vm_sync.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 vm_sync.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 vm_sync.$(OBJEXT): $(top_srcdir)/internal/serial.h
 vm_sync.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -19541,12 +19541,12 @@ vm_trace.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/array.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/bits.h
+vm_trace.$(OBJEXT): $(top_srcdir)/internal/box.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/class.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/gc.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/hash.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-vm_trace.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/serial.h
 vm_trace.$(OBJEXT): $(top_srcdir)/internal/set_table.h
@@ -19783,11 +19783,11 @@ weakmap.$(OBJEXT): $(CCAN_DIR)/str/str.h
 weakmap.$(OBJEXT): $(hdrdir)/ruby/ruby.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/array.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
+weakmap.$(OBJEXT): $(top_srcdir)/internal/box.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/compilers.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/gc.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/hash.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-weakmap.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/proc.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 weakmap.$(OBJEXT): $(top_srcdir)/internal/serial.h
@@ -19987,6 +19987,7 @@ yjit.$(OBJEXT): $(top_srcdir)/internal/array.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/bignum.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/bits.h
+yjit.$(OBJEXT): $(top_srcdir)/internal/box.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/class.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/compile.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/compilers.h
@@ -19995,7 +19996,6 @@ yjit.$(OBJEXT): $(top_srcdir)/internal/fixnum.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/gc.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/hash.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/imemo.h
-yjit.$(OBJEXT): $(top_srcdir)/internal/namespace.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/numeric.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 yjit.$(OBJEXT): $(top_srcdir)/internal/serial.h