[C++11] Use std::unique_ptr for ownership in a vector.
[C++11] Use std::unique_ptr for ownership in a vector.

Also change to using range-based for loops. No functional change intended.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@203396 91177308-0d34-0410-b5e6-96231b3b80d8

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