Move utils/{uri, utf8} to lib/{uri, utf8} .

frog/leg/frog_leg.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.
 
 #library('frog_leg');
 
-#import('../../utils/uri/uri.dart');
+#import('../../lib/uri/uri.dart');
 #import('../lang.dart', prefix: 'frog');
 #import('elements/elements.dart');
 #import('io/io.dart', prefix: 'io');
 #import('leg.dart');
 #import('tree/tree.dart');
 
 bool compile(frog.World world) {
   final throwOnError = frog.options.throwOnErrors;
   final compiler = new WorldCompiler(world, throwOnError);
   Uri cwd = new Uri(scheme: 'file', path: compiler.currentDirectory);
@@ skipping 97 matching lines @@
     }
     super.cancel(reason, node, token, instruction);
   }
 }
 
 class AbortLeg {
   final message;
   AbortLeg(this.message);
   toString() => 'Aborted due to --throw-on-error: $message';
 }