[infra] Begin removing gyp

tools/gyp_dart.py

-#!/usr/bin/env python
-
-# Copyright (c) 2012 The Dart Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""
-Invoke gyp to generate build files for building the Dart VM.
-"""
-
-import os
-import subprocess
-import sys
-
-SCRIPT_DIR = os.path.dirname(sys.argv[0])
-DART_ROOT = os.path.realpath(os.path.join(SCRIPT_DIR, '..'))
-
-def execute(args):
-  process = subprocess.Popen(args, cwd=DART_ROOT)
-  process.wait()
-  return process.returncode
-
-def main():
-  component = 'all'
-  if len(sys.argv) == 2:
-    component = sys.argv[1]
-
-  component_gyp_files = {
-    'all' : 'dart.gyp',
-    'runtime' : 'runtime/dart-runtime.gyp',
-  }
-  args = ['python', '-S', 'third_party/gyp/gyp_main.py',
-          '--depth=.', '-Itools/gyp/all.gypi',
-          component_gyp_files[component]]
-
-  sys.exit(execute(args))
-
-if __name__ == '__main__':
-  main()