Use types.size_t when testing against ctypes.c_size_t
Use types.size_t when testing against ctypes.c_size_t

And similarly use types.ssize_t for compatibility test for
ctypes.c_ssize_t.

IntelLabs/numba,numba/numba,IntelLabs/numba,seibert/numba,cpcloud/numba,cpcloud/numba,numba/numba,seibert/numba,numba/numba,IntelLabs/numba,numba/numba,seibert/numba,seibert/numba,cpcloud/numba,numba/numba,IntelLabs/numba,IntelLabs/numba,cpcloud/numba,seibert/numba,cpcloud/numba