Change deprecated comments that still talk about SCons.

tools/js2c.py

 #!/usr/bin/env python
 #
 # Copyright 2012 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
@@ skipping 196 matching lines @@
           fun = eval("lambda " + ",".join(args) + ': ' + body)
           macros.append((re.compile("\\b%s\\(" % name), PythonMacro(args, fun)))
         else:
           raise ("Illegal line: " + line)
   return (constants, macros)
 
 
 HEADER_TEMPLATE = """\
 // Copyright 2011 Google Inc. All Rights Reserved.
 
-// This file was generated from .js source files by SCons.  If you
+// This file was generated from .js source files by GYP.  If you
 // want to make changes to this file you should either change the
-// javascript source files or the SConstruct script.
+// javascript source files or the GYP script.
 
 #include "v8.h"
 #include "natives.h"
 #include "utils.h"
 
 namespace v8 {
 namespace internal {
 
   static const byte sources[] = { %(sources_data)s };
 
@@ skipping 157 matching lines @@
 
 def main():
   natives = sys.argv[1]
   type = sys.argv[2]
   compression = sys.argv[3]
   source_files = sys.argv[4:]
   JS2C(source_files, [natives], { 'TYPE': type, 'COMPRESSION': compression })
 
 if __name__ == "__main__":
   main()