Fixes a regression in objc GC layout bitmap involving block pointer ivars.
Fixes a regression in objc GC layout bitmap involving
block pointer ivars.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@81535 91177308-0d34-0410-b5e6-96231b3b80d8

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