Mark test/Analysis/crash-trace.c as requiring crash recovery.

This plus Rafael's fix at r186943 should keep all the buildbots happy.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@186950 91177308-0d34-0410-b5e6-96231b3b80d8
Remove line number from test/Analysis/crash-trace.c.

...and hopefully, finally, unbreak buildbots.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@186953 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused diagnostics.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@186955 91177308-0d34-0410-b5e6-96231b3b80d8