Add "just one more" include path to the monstrosity that is our header search logic. The Debian multiarch seems to have completely changed from when these were originally added, and I'd like to remove a bunch of them, but I'll be lazy and delay that until this logic is hoisted into the driver where it belongs.
Add "just one more" include path to the monstrosity that is our header
search logic. The Debian multiarch seems to have completely changed from
when these were originally added, and I'd like to remove a bunch of
them, but I'll be lazy and delay that until this logic is hoisted into
the driver where it belongs.

This should resolve PR11223.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@143345 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang