fix polymer tests -- replace run.sh and run tests using bots

pkg/polymer/lib/src/transform/script_compactor.dart

Index: pkg/polymer/lib/src/transform/script_compactor.dart
diff --git a/pkg/polymer/lib/src/transform/script_compactor.dart b/pkg/polymer/lib/src/transform/script_compactor.dart
index c247f2dc233caa8903dd61cc95de9dd24212b012..98a990ae1cc51487b974af2704e492eb2fe7aeda 100644
--- a/pkg/polymer/lib/src/transform/script_compactor.dart
+++ b/pkg/polymer/lib/src/transform/script_compactor.dart
@@ -47,7 +47,7 @@ class ScriptCompactor extends Transformer {
             continue;
           }
           var last = src.split('/').last;
-          if (last == 'dart.js' || last == 'testing.js') {
+          if (last == 'dart.js') {
             dartLoaderTag = tag;
           }
         }