fix schema matching of tuples to vartype lists (#25944)
Summary:
In schema matching we allow a homogenous tuple to be matched to list arguments. This logic wasn't yet extended for vartype lists, causing stuff like `len((1, 2, 3))` to fail.
Fix for https://github.com/pytorch/pytorch/issues/20500
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25944
Differential Revision: D17482510
Pulled By: eellison
fbshipit-source-id: aa63318c27a01d965a7a7b68ce8bec638168dc26
