variable.c: remove generic ivar support for special constants

Special constants are all frozen since [Feature #8923] and cannot
support ivars.  Remove some unused code we had for supporting them.

* variable.c (special_generic_ivar): remove flag
  (givar_i, rb_mark_generic_ivar_tbl): remove functions
  (rb_free_generic_ivar, rb_ivar_lookup, rb_ivar_delete,
   generic_ivar_set, rb_ivar_set, rb_ivar_defined,
   rb_copy_generic_ivar, rb_ivar_foreach, rb_ivar_count,
   rb_obj_remove_instance_variable):
   adjust for lack of ivar support in special constants
* test/ruby/test_variable.rb: test ivars for special consts
* internal.h: remove rb_mark_generic_ivar_tbl decl
* gc.c (gc_mark_roots): remove rb_mark_generic_ivar_tbl call

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50758 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 4 deletions

diff --git a/gc.c b/gc.c
index d7269cf138..cf659ebfd9 100644
--- a/gc.c
+++ b/gc.c
@@ -4579,10 +4579,6 @@ gc_mark_roots(rb_objspace_t *objspace, const char **categoryp)
     MARK_CHECKPOINT("global_tbl");
     rb_gc_mark_global_tbl();
 
-    /* mark generic instance variables for special constants */
-    MARK_CHECKPOINT("generic_ivars");
-    rb_mark_generic_ivar_tbl();
-
     if (stress_to_class) rb_gc_mark(stress_to_class);
 
     MARK_CHECKPOINT("finish");