Howard Hinnant gave us changes for lldb_private::SharingPtr that gives us the...

Howard Hinnant gave us changes for lldb_private::SharingPtr that gives us the ability have a single allocation contain both the class and the ref count without having to do intrusive pointer type stuff. They will intermingle correctly with other shared pointers as well. In order to take advantage of this you need to create your pointer in your class with the make_shared function:

       lldb_private::SharingPtr<A> p = llvm::make_shared<A>(i, j);

Currently up to five constructor arguments are supported and each must be an LValue.

llvm-svn: 118317