PTH: Fix remaining cases where the spelling cache in the PTH file was being missed when it shouldn't.  This shaves another 7% off PTH time for -Eonly on Cocoa.h

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62186 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed