Silence GCC 4.3 warning.
Silence GCC 4.3 warning.

TreeTransform.h:2333: warning: suggest parentheses around && within ||


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@84949 91177308-0d34-0410-b5e6-96231b3b80d8

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