nobu	2015-02-06 11:33:47 +0900 (Fri, 06 Feb 2015)

  New Revision: 49520

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=49520

  Log:
    revert r45487
    
    * variable.c (rb_alias_variable): IDs are always immportal now, no
      pin down is needed.
    
    * vm_method.c (rb_method_entry_make): ditto.

  Modified files:
    trunk/variable.c
    trunk/vm_method.c
Index: variable.c
===================================================================
--- variable.c	(revision 49519)
+++ variable.c	(revision 49520)
@@ -872,7 +872,6 @@ rb_alias_variable(ID name1, ID name2) https://github.com/ruby/ruby/blob/trunk/variable.c#L872
 
     entry2 = rb_global_entry(name2);
     if (!st_lookup(rb_global_tbl, (st_data_t)name1, &data1)) {
-	name1 = SYM2ID(ID2SYM(name1));
 	entry1 = ALLOC(struct global_entry);
 	entry1->id = name1;
 	st_add_direct(rb_global_tbl, name1, (st_data_t)entry1);
Index: vm_method.c
===================================================================
--- vm_method.c	(revision 49519)
+++ vm_method.c	(revision 49520)
@@ -344,8 +344,6 @@ rb_method_entry_make(VALUE klass, ID mid https://github.com/ruby/ruby/blob/trunk/vm_method.c#L344
 	rb_unlink_method_entry(old_me);
     }
 
-    mid = SYM2ID(ID2SYM(mid));
-
     me = ALLOC(rb_method_entry_t);
 
     rb_clear_method_cache_by_class(klass);

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