Add named constructor name checking

runtime/bin/process_impl.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 _exit(int status) native "Exit";
 
 class _ProcessStartStatus {
   int _errorCode;  // Set to OS error code if process start failed.
   String _errorMessage;  // Set to OS error message if process start failed.
 }
 
 
 class _Process extends Process {
-  static Process start(String path,
-                                  List<String> arguments,
-                                  [ProcessOptions options]) {
-    return new _Process.start(path, arguments, options);
-  }
-
   static Future<ProcessResult> run(String path,
                                    List<String> arguments,
                                    [ProcessOptions options]) {
     return new _NonInteractiveProcess._start(path, arguments, options)._result;
   }
 
   _Process.start(String path,
                  List<String> arguments,
                  ProcessOptions options) {
     if (path is !String) {
@@ skipping 362 matching lines @@
 
 class _ProcessResult implements ProcessResult {
   const _ProcessResult(int this.exitCode,
                        String this.stdout,
                        String this.stderr);
 
   final int exitCode;
   final String stdout;
   final String stderr;
 }