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

tests/utils/src/UriTest.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('uriTest');
 
-#import('../../../utils/uri/uri.dart');
+#import('../../../lib/uri/uri.dart');
 
 testUri(String uri, bool isAbsolute) {
   Expect.equals(isAbsolute, new Uri.fromString(uri).isAbsolute());
   Expect.stringEquals(uri, new Uri.fromString(uri).toString());
 }
 
 main() {
   testUri("http:", true);
   testUri("file://", true);
   testUri("file", false);
@@ skipping 66 matching lines @@
   Expect.stringEquals("http://a/b/c/g#s/./x",
                       base.resolve("g#s/./x").toString());
   Expect.stringEquals("http://a/b/c/g#s/../x",
                       base.resolve("g#s/../x").toString());
   Expect.stringEquals("http:g", base.resolve("http:g").toString());
 
   // Additional tests (not from RFC 3986).
   Expect.stringEquals("http://a/b/g;p/h;s",
                       base.resolve("../g;p/h;s").toString());
 }