Sema: Make helper function static.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193857 91177308-0d34-0410-b5e6-96231b3b80d8
AArch64: Fix wildcard matching on CHECK lines. Now recognises arch64--.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193858 91177308-0d34-0410-b5e6-96231b3b80d8