Fix temp_zone scoping when parsing inner function literals

src/ast.h

 // 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.
 
 #ifndef V8_AST_H_
 #define V8_AST_H_
 
 #include "src/assembler.h"
 #include "src/ast-value-factory.h"
 #include "src/bailout-reason.h"
@@ skipping 3658 matching lines @@
 
   EmptyParentheses* NewEmptyParentheses(int pos) {
     return new (local_zone_) EmptyParentheses(local_zone_, pos);
   }
 
   Zone* zone() const { return local_zone_; }
 
   // Handles use of temporary zones when parsing inner function bodies.
   class BodyScope {
    public:
-    BodyScope(AstNodeFactory* factory, Zone* temp_zone, bool can_use_temp_zone)
+    BodyScope(AstNodeFactory* factory, Zone* temp_zone, bool use_temp_zone)
         : factory_(factory), prev_zone_(factory->local_zone_) {
-      if (can_use_temp_zone) {
+      if (use_temp_zone) {
         factory->local_zone_ = temp_zone;
       }
     }
 
     ~BodyScope() { factory_->local_zone_ = prev_zone_; }
 
    private:
     AstNodeFactory* factory_;
     Zone* prev_zone_;
   };
 
  private:
   // This zone may be deallocated upon returning from parsing a function body
   // which we can guarantee is not going to be compiled or have its AST
   // inspected.
   // See ParseFunctionLiteral in parser.cc for preconditions.
   Zone* local_zone_;
   // ZoneObjects which need to persist until scope analysis must be allocated in
   // the parser-level zone.
   Zone* parser_zone_;
   AstValueFactory* ast_value_factory_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_