LiveEdit: Optimize compare by stripping common suffix and prefix.

src/liveedit.h

 // Copyright 2010 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 130 matching lines @@
 
 
 // A general-purpose comparator between 2 arrays.
 class Comparator {
  public:
 
   // Holds 2 arrays of some elements allowing to compare any pair of
   // element from the first array and element from the second array.
   class Input {
    public:
-    virtual int getLength1() = 0;
-    virtual int getLength2() = 0;
-    virtual bool equals(int index1, int index2) = 0;
+    virtual int GetLength1() = 0;
+    virtual int GetLength2() = 0;
+    virtual bool Equals(int index1, int index2) = 0;
 
    protected:
     virtual ~Input() {}
   };
 
   // Receives compare result as a series of chunks.
   class Output {
    public:
     // Puts another chunk in result list. Note that technically speaking
     // only 3 arguments actually needed with 4th being derivable.
     virtual void AddChunk(int pos1, int pos2, int len1, int len2) = 0;
 
    protected:
     virtual ~Output() {}
   };
 
   // Finds the difference between 2 arrays of elements.
   static void CalculateDifference(Input* input,
                                   Output* result_writer);
 };
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 } }  // namespace v8::internal
 
 #endif /* V*_LIVEEDIT_H_ */