Add more test coverage for the Objective-C deprected selector warning.

I broke this case in a local patch I'm writing, and there was no test to stop
me.  Now there is.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@224873 91177308-0d34-0410-b5e6-96231b3b80d8
Mark __builtin_ia32_cmppd256 and __builtin_ia32_cmpps256 as taking an ICE for the constant parameter.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@224874 91177308-0d34-0410-b5e6-96231b3b80d8