[modules] Disable Crankshaft for functions referencing module variables.

src/ast/ast-numbering.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ast/ast-numbering.h"
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 
 namespace v8 {
@@ skipping 129 matching lines @@
 
 
 void AstNumberingVisitor::VisitRegExpLiteral(RegExpLiteral* node) {
   IncrementNodeCount();
   node->set_base_id(ReserveIdRange(RegExpLiteral::num_ids()));
 }
 
 
 void AstNumberingVisitor::VisitVariableProxyReference(VariableProxy* node) {
   IncrementNodeCount();
-  if (node->var()->IsLookupSlot()) {
-    DisableCrankshaft(kReferenceToAVariableWhichRequiresDynamicLookup);
+  switch (node->var()->location()) {
+    case VariableLocation::LOOKUP:
+      DisableCrankshaft(kReferenceToAVariableWhichRequiresDynamicLookup);
+      break;
+    case VariableLocation::MODULE:
+      DisableCrankshaft(kReferenceToModuleVariable);
+      break;
+    default:
+      break;
   }
   node->set_base_id(ReserveIdRange(VariableProxy::num_ids()));
 }
 
 
 void AstNumberingVisitor::VisitVariableProxy(VariableProxy* node) {
   VisitVariableProxyReference(node);
   ReserveFeedbackSlots(node);
 }
 
@@ skipping 447 matching lines @@
 }
 
 
 bool AstNumbering::Renumber(Isolate* isolate, Zone* zone,
                             FunctionLiteral* function) {
   AstNumberingVisitor visitor(isolate, zone);
   return visitor.Renumber(function);
 }
 }  // namespace internal
 }  // namespace v8