Fix missing retun value.

preparser/preparser-process.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 165 matching lines @@
 
 
 template <typename T>
 class ScopedPointer {
  public:
   explicit ScopedPointer() : pointer_(NULL) {}
   explicit ScopedPointer(T* pointer) : pointer_(pointer) {}
   ~ScopedPointer() { if (pointer_ != NULL) delete[] pointer_; }
   T& operator[](int index) { return pointer_[index]; }
   T* operator*() { return pointer_ ;}
-  T*& operator=(T* new_value) {
+  T* operator=(T* new_value) {
     if (pointer_ != NULL) delete[] pointer_;
     pointer_ = new_value;
+    return new_value;
   }
  private:
   T* pointer_;
 };
 
 
 
 void fail(v8::PreParserData* data, const char* message, ...) {
   va_list args;
   va_start(args, message);
@@ skipping 170 matching lines @@
   if (data.stack_overflow()) {
     fail(&data, "ERROR: Stack overflow\n");
   }
 
   // Check that the expected exception is thrown, if an exception is
   // expected.
   CheckException(&data, &expects);
 
   return EXIT_SUCCESS;
 }