Prior to this, it was possible to explicitly specify machine types for
stack arguments, but these were simply ignored and treated as
tagged-by-default when creating the actual CallDescriptor.

This verifies that all stack args specified in the descriptor are
actually given tagged types, and fails early if that is not the
case.

Bug: v8:6666
Change-Id: Idb543a11c976d0260fea60d31e30c21b15b32256
Reviewed-on: https://chromium-review.googlesource.com/1186642Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55380}