string.c: move frozen_strings table to rb_vm_t

Cleanup in case MVM development proceeds.

* string.c: remove static frozen_strings
* string.c (Init_frozen_strings): new function
* string.c (rb_fstring): remove check for frozen strings,
  use per-VM table
* string.c (rb_str_free): use per-VM table
* string.c (Init_String): use per-VM table
* vm_core.h (rb_vm_t): add frozen_strings table
* internal.h (Init_frozen_strings): new function prototype
* eval.c (ruby_setup): call Init_frozen_strings
  [Feature #10182]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47310 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index fbe17d034b..f0a06fbfcf 100644
--- a/eval.c
+++ b/eval.c
@@ -52,6 +52,7 @@ ruby_setup(void)
     Init_BareVM();
     Init_heap();
     Init_vm_objects();
+    Init_frozen_strings();
 
     PUSH_TAG();
     if ((state = EXEC_TAG()) == 0) {