literal symbol by intern

* compile.c (iseq_compile_each0): literal symbol should not be
  affected by redefinition of String#intern method.

* vm_insnhelper.c (rb_vm_str_intern): intern a string into a
  symbol directly.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59946 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 1 deletions

diff --git a/compile.c b/compile.c
index 7ba0604699..5cf7f750fc 100644
--- a/compile.c
+++ b/compile.c
@@ -29,6 +29,9 @@
 #undef RUBY_UNTYPED_DATA_WARNING
 #define RUBY_UNTYPED_DATA_WARNING 0
 
+rb_control_frame_t *
+  FUNC_FASTCALL(rb_vm_str_intern)(rb_thread_t *, rb_control_frame_t *);
+
 #define ISEQ_TYPE_ONCE_GUARD ISEQ_TYPE_DEFINED_GUARD
 
 #define FIXNUM_INC(n, i) ((n)+(INT2FIX(i)&~FIXNUM_FLAG))
@@ -6571,7 +6574,7 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, NODE *node, int popp
       case NODE_DSYM:{
 	compile_dstr(iseq, ret, node);
 	if (!popped) {
-	    ADD_SEND(ret, line, idIntern, INT2FIX(0));
+	    ADD_INSN1(ret, line, opt_call_c_function, rb_vm_str_intern);
 	}
 	else {
 	    ADD_INSN(ret, line, pop);