CodeGen: reorder ARM hint
CodeGen: reorder ARM hint

__yield is part of the ACLE specified extensions and not specific to MSVC.
Move the declaration for the hint to the proper group.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@207830 91177308-0d34-0410-b5e6-96231b3b80d8

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