use of predefined identifiers like __func__ at global scope warn in sema,
but crashed codegen.  Fix this to report the name of the llvm function.
This fixes rdar://6808051


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69658 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed