We need to put this in LLDB since we need to vend this in our API
because our public API uses shared pointers to our private objects.

Removed a deprecated file: include/lldb/Host/Types.h

Added the new SharingPtr.cpp/.h files into source/Utility.

Added a shell script build phase that fixes up all headers in the
LLDB.framework.

llvm-svn: 105895