Mark a broken pub test as skip for now.
Mark a broken pub test as skip for now.

R=rnystrom@google.com
BUG=17601
TBR

Review URL: https://codereview.chromium.org//204233002

git-svn-id: a962b240025cf0577aa172e20f49ccb159ba6be1@34098 260f80e4-7a28-3924-810f-c04153c831b5

cjkao/dart-pub,computmaxer/pub,maxwellpeterson-wf/pub,dart-lang/pub,dart-lang/pub