Extend testing of metadata.

dart/tests/compiler/dart2js/resolver_test.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.
 
 #import('dart:uri');
 
 #import("../../../lib/compiler/implementation/leg.dart");
 #import("../../../lib/compiler/implementation/elements/elements.dart");
 #import("../../../lib/compiler/implementation/tree/tree.dart");
 #import("../../../lib/compiler/implementation/scanner/scannerlib.dart");
@@ skipping 700 matching lines @@
   resolveConstructor(script, "Object o = new Object();", "Object", "Object", 1,
                      [], [MessageKind.SUPER_INITIALIZER_IN_OBJECT],
                      corelib: CORELIB_WITH_INVALID_OBJECT);
 }
 
 map(ResolverVisitor visitor) {
   TreeElementMapping elements = visitor.mapping;
   return elements.map;
 }
 
-length(Link link) => link.isEmpty() ? 0 : length(link.tail) + 1;
-
 at(Link link, int index) => (index == 0) ? link.head : at(link.tail, index - 1);
 
 List<String> asSortedStrings(Link link) {
   List<String> result = <String>[];
   for (; !link.isEmpty(); link = link.tail) result.add(link.head.toString());
   result.sort((s1, s2) => s1.compareTo(s2));
   return result;
 }
 
 compileScript(String source) {
@@ skipping 50 matching lines @@
         var d = new D();
         --d;
       }""";
   final compiler = compileScript(script);
 
   checkMemberResolved(compiler, 'A', operatorName('+'));
   checkMemberResolved(compiler, 'B', operatorName('+'));
   checkMemberResolved(compiler, 'C', operatorName('-'));
   checkMemberResolved(compiler, 'D', operatorName('-'));
 }