Don't crash if we can't find FileEntry info for a typedef, since one 
isn't guaranteed to exist. This fixes a crash with conflicting typedefs
coming from stdin.

This also fixes the crash in PR2406, but doesn't completely fix the 
issue; it appears there's something strange about the physical location 
for the definition of int64_t in stdlib.h.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52209 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed