Implement flag and source getters on RegExp.prototype.

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 330 matching lines @@
   Args:
     macro_filename: Name of the macro file, if any.
 
   Returns:
     A function (string -> string) that processes a source file.
   """
   filter_chain = []
 
   if macro_filename:
     (consts, macros) = ReadMacros(ReadFile(macro_filename))
+    filter_chain.append(lambda l: ExpandMacros(l, macros))
     filter_chain.append(lambda l: ExpandConstants(l, consts))
-    filter_chain.append(lambda l: ExpandMacros(l, macros))
 
   if message_template_file:
     message_templates = ReadMessageTemplates(ReadFile(message_template_file))
     filter_chain.append(lambda l: ExpandConstants(l, message_templates))
 
   filter_chain.extend([
     RemoveCommentsAndTrailingWhitespace,
     ExpandInlineMacros,
     ExpandInlineConstants,
     Validate,
@@ skipping 232 matching lines @@
   JS2C(args[2:],
        args[0],
        args[1],
        options.raw,
        options.startup_blob,
        options.js)
 
 
 if __name__ == "__main__":
   main()