Handle invalid parser cache gracefully (move invalid cache handling to embedder).

src/parser.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_PARSER_H_
 #define V8_PARSER_H_
 
 #include "src/allocation.h"
 #include "src/ast.h"
 #include "src/compiler.h"  // For CachedDataMode
@@ skipping 60 matching lines @@
   void Initialize();
   FunctionEntry GetFunctionEntry(int start);
   int FunctionCount();
 
   bool HasError();
 
   unsigned* Data() {  // Writable data as unsigned int array.
     return reinterpret_cast<unsigned*>(const_cast<byte*>(script_data_->data()));
   }
 
+  void Reject() { script_data_->Reject(); }
+
+  bool rejected() const { return script_data_->rejected(); }
+
  private:
   explicit ParseData(ScriptData* script_data) : script_data_(script_data) {}
 
   bool IsSane();
   unsigned Magic();
   unsigned Version();
   int FunctionsSize();
   int Length() const {
     // Script data length is already checked to be a multiple of unsigned size.
     return script_data_->length() / sizeof(unsigned);
@@ skipping 905 matching lines @@
 }
 
 
 Expression* ParserTraits::CloseTemplateLiteral(TemplateLiteralState* state,
                                                int start, Expression* tag) {
   return parser_->CloseTemplateLiteral(state, start, tag);
 }
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_