Remove frogsh.

dart/frog/frog_options.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.
 
 /** General options used by the compiler. */
 FrogOptions options;
 
 /** Extracts options from command-line arguments. */
 void parseOptions(String homedir, List<String> args, FileSystem files) {
   assert(options == null);
@@ skipping 59 matching lines @@
       libDir = joinPaths(homedir, '/../lib');
     } else {
       world.error('Invalid configuration $config', null);
       throw('Invalid configuration');
     }
 
     bool passedLibDir = false;
     childArgs = [];
 
     // Start from 2 to skip arguments representing the compiler command
-    // (node/python followed by frogsh/frog.py).
+    // (python followed by frog.py).
     loop: for (int i = 2; i < args.length; i++) {
       var arg = args[i];
       if (tryParseSimpleOption(arg)) continue;
       if (arg.endsWith('.dart')) {
         dartScript = arg;
         childArgs = args.getRange(i + 1, args.length - i - 1);
         break loop;
       } else if (arg.startsWith('--out=')) {
         outfile = arg.substring('--out='.length);
       } else if (arg.startsWith('--libdir=')) {
@@ skipping 101 matching lines @@
         enableAsserts = true;
         return true;
 
       case '--unchecked':
         disableBoundsChecks = true;
         return true;
     }
     return false;
   }
 }