compile.c, vm_insnhelper.c: flip-flop without hidden string key

* compile.c (iseq_compile_each): count flip-flop state in local iseq
  not in each iseqs, so that the keys can be other than hidden
  strings.  [ruby-core:47253] [Bug #6899]
* vm_insnhelper.c (lep_svar_get, lep_svar_set, vm_getspecial): store
  flip-flop states in an array instead of a hash.
* iseq.c (set_relation): main iseq also can has local scope.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38292 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/iseq.c b/iseq.c
index 42eba6eb25..78e33b0d96 100644
--- a/iseq.c
+++ b/iseq.c
@@ -231,6 +231,10 @@ set_relation(rb_iseq_t *iseq, const VALUE parent)
 	GetISeqPtr(parent, piseq);
 	iseq->parent_iseq = piseq;
     }
+
+    if (type == ISEQ_TYPE_MAIN) {
+	iseq->local_iseq = iseq;
+    }
 }
 
 static VALUE