Shift the vcall slots for non-virtual bases of a virtual base, up into the virtual base so they can be reused properly.  Don't reuse vcall slots across a virtual boundary.  WIP.  I have a testcase, but there are still things that need to be fixed before the testcase can go in.
Shift the vcall slots for non-virtual bases of a virtual base, up into
the virtual base so they can be reused properly.  Don't reuse vcall
slots across a virtual boundary.  WIP.  I have a testcase, but there
are still things that need to be fixed before the testcase can go in.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@84120 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,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-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,llvm-mirror/clang