fix rdar://7466570 - Be more bug compatible with GCC when it comes to 
expanding directives withing macro expansions.  This is undefined behavior
according to 6.10.3p11, so we might as well be undefined in ways similar to
GCC.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91266 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed