Fix for issue-7157 - set the stack marker in the top API local scope just before entering dart code…

vm/dart_api_impl.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_api.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart.h"
@@ skipping 1120 matching lines @@
 
 // --- Scopes ----
 
 
 DART_EXPORT void Dart_EnterScope() {
   Isolate* isolate = Isolate::Current();
   CHECK_ISOLATE(isolate);
   ApiState* state = isolate->api_state();
   ASSERT(state != NULL);
   ApiLocalScope* new_scope = new ApiLocalScope(state->top_scope(),
-                                               reinterpret_cast<uword>(&state));
+                                               isolate->top_exit_frame_info());
   ASSERT(new_scope != NULL);
   state->set_top_scope(new_scope);  // New scope is now the top scope.
 }
 
 
 DART_EXPORT void Dart_ExitScope() {
   Isolate* isolate = Isolate::Current();
   CHECK_ISOLATE_SCOPE(isolate);
   ApiState* state = isolate->api_state();
   ApiLocalScope* scope = state->top_scope();
@@ skipping 3370 matching lines @@
   }
   {
     NoGCScope no_gc;
     RawObject* raw_obj = obj.raw();
     isolate->heap()->SetPeer(raw_obj, peer);
   }
   return Api::Success(isolate);
 }
 
 }  // namespace dart