Remove superfluous initializer.  The following fully-covered switch either sets value to External or exits the function.
Remove superfluous initializer. 
The following fully-covered switch either sets value to External or exits the function.



git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@295839 91177308-0d34-0410-b5e6-96231b3b80d8

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