marshal.c: skip internal names

* marshal.c (w_objivar): skip internal instance variables in
  T_OBJECT too.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52940 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 19 insertions, 0 deletions

diff --git a/test/-ext-/marshal/test_internal_ivar.rb b/test/-ext-/marshal/test_internal_ivar.rb
new file mode 100644
index 0000000000..e0e2a72f54
--- /dev/null
+++ b/test/-ext-/marshal/test_internal_ivar.rb
@@ -0,0 +1,19 @@
+require 'test/unit'
+require '-test-/marshal/internal_ivar'
+
+module Bug end
+
+module Bug::Marshal
+  class TestInternalIVar < Test::Unit::TestCase
+    def test_marshal
+      v = InternalIVar.new("hello", "world")
+      assert_equal("hello", v.normal)
+      assert_equal("world", v.internal)
+      dump = ::Marshal.dump(v)
+      v = assert_nothing_raised {break ::Marshal.load(dump)}
+      assert_instance_of(InternalIVar, v)
+      assert_equal("hello", v.normal)
+      assert_nil(v.internal)
+    end
+  end
+end