Re-enable Yaml tests on dart2js and dartc.

utils/tests/pub/pub.status

Index: utils/tests/pub/pub.status
diff --git a/utils/tests/pub/pub.status b/utils/tests/pub/pub.status
index b9e77eb308d28fa997fcf5e7cd11f719b53330e9..7ae7c3628f5df3abc80f9f59d0b4c2110d6e6ff8 100644
--- a/utils/tests/pub/pub.status
+++ b/utils/tests/pub/pub.status
@@ -2,15 +2,23 @@
 # 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.
 
+# Pub only runs on the VM, so just rule out all compilers.
 [ $compiler == frog || $compiler == dart2js || $compiler == dartc ]
-*: Skip # Pub only runs on the VM, so just rule out all compilers.
+pub_test: Skip
+version_test: Skip
+pubspec_test: Skip
 
+# Pub only runs on the standalone VM, not the browser.
 [ $runtime == drt || $runtime == dartium ]
-*: Skip # Pub only runs on the standalone VM, not the browser.
+pub_test: Skip
+version_test: Skip
+pubspec_test: Skip
 
+# Right now, Pub update creates symlinks which aren't supported on Windows.
 [ $system == windows ]
-*: Skip # Right now, Pub update creates symlinks which aren't supported
-        # on Windows.
+pub_test: Skip
+version_test: Skip
+pubspec_test: Skip
 
-[ $compiler == dart2js ]
-yaml_test: Skip # Issue 2717.
+[ $compiler == frog ]
+yaml_test: Fail # Issue 3215