[clang-format] Fixed self assignment
[clang-format] Fixed self assignment

Reviewers: MyDeveloperDay, RKSimon

Reviewed By: MyDeveloperDay

Subscribers: RKSimon, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61281

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@360810 91177308-0d34-0410-b5e6-96231b3b80d8

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