Passthrough compiler launcher
Passthrough compiler launcher

Summary: Not having this seems like an oversight, and makes stage2 builds odd.

Reviewers: ddunbar, dexonsmith

Subscribers: mgorny, jkorous, jdoerfert, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59032

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@355547 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang