Improve diagnsotic further on integer overflow.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173461 91177308-0d34-0410-b5e6-96231b3b80d8
Add space after ';'.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173462 91177308-0d34-0410-b5e6-96231b3b80d8