Fixed a problem where we failed to get the size of an Objective-C type.
Fixed a problem where we failed to get the size of an Objective-C type.

<rdar://problem/27897056>


git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@279098 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb