VS integration test failures

[TyOverby]

http://dotnet-ci.cloudapp.net/job/roslyn-internal_prtest_win_vsi_p1/31/console

[brettfo]

As per the log, failing tests are BasicWinForms.xml and BasicWPF.xml. The BasicWinForms.xml failure is being tracked by #6988 and BasicWPF.xml is currently passing as per this build

Closing issue in favor of others.