When analyzing for member self-assignment, don't attempt to dereference null Stmt* such as those which occur in ?: . Fixes PR7378.
When analyzing for member self-assignment, don't attempt to dereference null
Stmt* such as those which occur in ?: . Fixes PR7378.

Also, generally whip the code into shape fixing several coding style violations.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@105992 91177308-0d34-0410-b5e6-96231b3b80d8

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