Various clean-ups after top-level lexical declarations are done.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index a01cf0f1d5742a1f555fcc399c8a306c340476b4..64f409acff0fadfd42c10ae4126c59b9e7a5b965 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -5301,7 +5301,7 @@ bool JSObject::ReferencesObject(Object* obj) {
     if (context->has_extension() && !context->IsCatchContext()) {
       // With harmony scoping, a JSFunction may have a global context.
       // TODO(mvstanton): walk into the ScopeInfo.
-      if (FLAG_harmony_scoping && context->IsGlobalContext()) {
+      if (FLAG_harmony_scoping && context->IsScriptContext()) {
         return false;
       }