fix a bug introduced in my previous patch: moving clang headers to the
"after" group instead of the system group makes it so #include <limits.h>
picks up the *system* limits.h file before clang's.  This causes a failure
on linux and is definitely not what we want.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65026 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed