Refactor is_X_like, better invariant checking for SymInt overload (#83668)
Add is_symint_like, by way of is_base_ty_like which generalizes
the pattern for is_tensor_like and is_generator_like. Now that
we can query if a signature contains a SymInt, we can enforce that
you must name the overload with SymInt if the signature contains
SymInt.
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/83668
Approved by: https://github.com/bdhirsh, https://github.com/larryliu0820
