__clear_cache() is varargs and people will occasionally write it without
arguments. Process only the arguments that people write, but process
all of them.

Fixes rdar://8900346


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127616 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed