v8:3303 MultithreadedParallelIsolates has a race condition

Disabling test until bug is fixed.
R=svenpanne@chromium.org
BUG=v8:3303
LOG=N

Review URL: https://codereview.chromium.org/263893003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/cctest.status

@@ -30,6 +30,9 @@
   # All tests prefixed with 'Bug' are expected to fail.
   'test-api/Bug*': [FAIL],
 
+  # BUG(3303). Crashes on mac builds, known race condition.
+  'test-lockers/MultithreadedParallelIsolates': [SKIP],
+
   ##############################################################################
   # BUG(382): Weird test. Can't guarantee that it never times out.
   'test-api/ApplyInterruption': [PASS, TIMEOUT],