Implement a minor optimization when loading module maps to satisfy a
module import: don't re-check for a loaded module unless we've
actually loaded a new module map file. Already-loaded module map files
aren't interesting.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144435 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed