Fix an issue where the libc++ std::list formatter wasn't recognizing the new memory layout correctly
Fix an issue where the libc++ std::list formatter wasn't recognizing the new memory layout correctly

rdar://problem/26999542



git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@276061 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