Cleanup indentation and remove some dead code.
Cleanup indentation and remove some dead code.

Analyze files not compiled using "-c".  This fixes:

<rdar://problem/5961638> invoke checker when gcc is not called with "-c"


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@51545 91177308-0d34-0410-b5e6-96231b3b80d8

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