[NNC] masked fill (#49627)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/49627
There was a bug in the test that was hidden by the `If eager mode doesn't support a dtype/op/device combo` try / catch, so cuda wasn't being tested � The fix is just to rename `aten::masked_fill` to `aten_masked_fill`.
Test Plan: Imported from OSS
Reviewed By: navahgar
Differential Revision: D25696409
Pulled By: eellison
fbshipit-source-id: 83de1f5a194df54fe317b0035d4a6c1aed1d19a0
