[PyTorch] Adopt IValue::toTupleRef() where obvious (#65505)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65505
Generated with
`fastmod -m 'toTuple\(\)(\s*)->' 'toTupleRef()${1}.'`
, followed by
`fastmod '(std::move\(.*)toTupleRef\(\).' '${1}toTuple()->'`
to unbreak 2 callsites.
ghstack-source-id: 142065835
Test Plan: CI
Reviewed By: gchanan
Differential Revision: D31131025
fbshipit-source-id: 54457ae5bbeb38db9c7f196d469b98521c3d3f34
