IDL compiler: delete Perl compiler, remove unstable/ directory

Source/bindings/scripts/idl_compiler.py

 #!/usr/bin/python
 # Copyright (C) 2013 Google Inc. 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 27 matching lines @@
 
 from optparse import OptionParser
 import os
 import cPickle as pickle
 import sys
 
 from code_generator_v8 import CodeGeneratorV8
 from idl_reader import IdlReader
 # from utilities import write_file  # FIXME: import once in same directory
 
+
 def parse_options():
     parser = OptionParser()
     parser.add_option('--idl-attributes-file')
     parser.add_option('--output-directory')
     parser.add_option('--interfaces-info-file')
     parser.add_option('--write-file-only-if-changed', type='int')
     # ensure output comes last, so command line easy to parse via regexes
     parser.disable_interspersed_args()
 
     options, args = parser.parse_args()
@@ skipping 37 matching lines @@
     header_text, cpp_text = code_generator.generate_code(definitions, interface_name)
 
     header_filename = os.path.join(output_directory, 'V8%s.h' % interface_name)
     cpp_filename = os.path.join(output_directory, 'V8%s.cpp' % interface_name)
     write_file(header_text, header_filename, only_if_changed)
     write_file(cpp_text, cpp_filename, only_if_changed)
 
 
 if __name__ == '__main__':
     sys.exit(main())