Switch polymer's build.dart to use the new linter. This CL does the following

pkg/polymer/test/run_all.dart

Index: pkg/polymer/test/run_all.dart
diff --git a/pkg/polymer/test/run_all.dart b/pkg/polymer/test/run_all.dart
index 6191492f729bdc8f4152f13853dd7a1f7e505209..ba46ba155ebf3e4a59b87f88a2bf69d0197d51db 100644
--- a/pkg/polymer/test/run_all.dart
+++ b/pkg/polymer/test/run_all.dart
@@ -11,10 +11,7 @@ library run_impl;
 import 'dart:io';
 import 'package:unittest/compact_vm_config.dart';
 import 'package:unittest/unittest.dart';
-import 'package:polymer/testing/content_shell_test.dart';
 
-import 'compiler_test.dart' as compiler_test;
-import 'css_test.dart' as css_test;
 import 'transform/all_phases_test.dart' as all_phases_test;
 import 'transform/code_extractor_test.dart' as code_extractor_test;
 import 'transform/import_inliner_test.dart' as import_inliner_test;
@@ -36,8 +33,6 @@ main() {
   }
 
   addGroup('linter_test.dart', linter_test.main);
-  addGroup('compiler_test.dart', compiler_test.main);
-  addGroup('css_test.dart', css_test.main);
   addGroup('utils_test.dart', utils_test.main);
   addGroup('transform/code_extractor_test.dart', code_extractor_test.main);
   addGroup('transform/import_inliner_test.dart', import_inliner_test.main);
@@ -45,24 +40,4 @@ main() {
   addGroup('transform/polyfill_injector_test.dart',
       polyfill_injector_test.main);
   addGroup('transform/all_phases_test.dart', all_phases_test.main);
-
-  endToEndTests('data/unit/web', 'data/out');
-
-  // Note: if you're adding more render test suites, make sure to update run.sh
-  // as well for convenient baseline diff/updating.
-
-  // TODO(jmesserly): figure out why this fails in content_shell but works in
-  // Dartium and Firefox when using the ShadowDOM polyfill.
-  exampleTest('../example/component/news', ['--no-shadowdom']..addAll(args));
-}
-
-void exampleTest(String path, [List args]) {
-  // TODO(sigmund): renderTests currently contatenates [path] with the out
-  // folder. This can be a problem with relative paths that go up (like todomvc
-  // above, which has '../../../'). If we continue running tests with
-  // test/run.sh, we should fix this. For now we work around this problem by
-  // using a long path 'data/out/example/test'. That way we avoid dumping output
-  // in the source-tree.
-  renderTests(path, '$path/test', '$path/test/expected',
-      'data/out/example/test', arguments: args);
 }