Don't emit any fallthrough / missing-noreturn warnings if we can't compute a CFG for a function.
Don't emit any fallthrough / missing-noreturn warnings if we can't
compute a CFG for a function.



git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@103905 91177308-0d34-0410-b5e6-96231b3b80d8

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