Remove unused Zone argument from InitializeAstVisitor

src/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-numbering.h"
 
 #include "src/ast.h"
 #include "src/scopes.h"
 
 namespace v8 {
 namespace internal {
 
 class AstNumberingVisitor final : public AstVisitor {
  public:
   AstNumberingVisitor(Isolate* isolate, Zone* zone)
       : AstVisitor(),
         isolate_(isolate),
+        zone_(zone),
         next_id_(BailoutId::FirstUsable().ToInt()),
         properties_(zone),
         slot_cache_(zone),
         dont_optimize_reason_(kNoReason) {
-    InitializeAstVisitor(isolate, zone);
+    InitializeAstVisitor(isolate);
   }
 
   bool Renumber(FunctionLiteral* node);
 
  private:
 // AST node visitor interface.
 #define DEFINE_VISIT(type) virtual void Visit##type(type* node) override;
   AST_NODE_LIST(DEFINE_VISIT)
 #undef DEFINE_VISIT
 
@@ skipping 33 matching lines @@
 
   template <typename Node>
   void ReserveFeedbackSlots(Node* node) {
     node->AssignFeedbackVectorSlots(isolate_, properties_.get_spec(),
                                     &slot_cache_);
   }
 
   BailoutReason dont_optimize_reason() const { return dont_optimize_reason_; }
 
   Isolate* isolate_;
+  Zone* zone_;
   int next_id_;
   AstProperties properties_;
   // The slot cache allows us to reuse certain feedback vector slots.
   FeedbackVectorSlotCache slot_cache_;
   BailoutReason dont_optimize_reason_;
 
   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
   DISALLOW_COPY_AND_ASSIGN(AstNumberingVisitor);
 };
 
@@ skipping 379 matching lines @@
 void AstNumberingVisitor::VisitObjectLiteral(ObjectLiteral* node) {
   IncrementNodeCount();
   node->set_base_id(ReserveIdRange(node->num_ids()));
   for (int i = 0; i < node->properties()->length(); i++) {
     VisitObjectLiteralProperty(node->properties()->at(i));
   }
   node->BuildConstantProperties(isolate_);
   // Mark all computed expressions that are bound to a key that
   // is shadowed by a later occurrence of the same key. For the
   // marked expressions, no store code will be is emitted.
-  node->CalculateEmitStore(zone());
+  node->CalculateEmitStore(zone_);
   ReserveFeedbackSlots(node);
 }
 
 
 void AstNumberingVisitor::VisitObjectLiteralProperty(
     ObjectLiteralProperty* node) {
   if (node->is_computed_name()) DisableCrankshaft(kComputedPropertyName);
   Visit(node->key());
   Visit(node->value());
 }
@@ skipping 86 matching lines @@
 }
 
 
 bool AstNumbering::Renumber(Isolate* isolate, Zone* zone,
                             FunctionLiteral* function) {
   AstNumberingVisitor visitor(isolate, zone);
   return visitor.Renumber(function);
 }
 }  // namespace internal
 }  // namespace v8