Fix issue with numeric property names

src/parser.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/v8.h"
 
 #include "src/api.h"
 #include "src/ast.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
@@ skipping 611 matching lines @@
 
 
 const AstRawString* ParserTraits::GetSymbol(Scanner* scanner) {
   const AstRawString* result =
       parser_->scanner()->CurrentSymbol(parser_->ast_value_factory_);
   DCHECK(result != NULL);
   return result;
 }
 
 
+const AstRawString* ParserTraits::GetNumberAsSymbol(Scanner* scanner) {
+  double double_value = parser_->scanner()->DoubleValue();
+  char array[100];
+  const char* string =
+      DoubleToCString(double_value, Vector<char>(array, ARRAY_SIZE(array)));
+  return ast_value_factory()->GetOneByteString(string);
+}
+
+
 const AstRawString* ParserTraits::GetNextSymbol(Scanner* scanner) {
   return parser_->scanner()->NextSymbol(parser_->ast_value_factory_);
 }
 
 
 Expression* ParserTraits::ThisExpression(
     Scope* scope, AstNodeFactory<AstConstructionVisitor>* factory, int pos) {
   return factory->NewVariableProxy(scope->receiver(), pos);
 }
 
@@ skipping 4188 matching lines @@
     info()->SetAstValueFactory(ast_value_factory_);
   }
   ast_value_factory_ = NULL;
 
   InternalizeUseCounts();
 
   return (result != NULL);
 }
 
 } }  // namespace v8::internal