Renaming IValue List functions (#32093)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32093
toGenericListRef -> toListRef
isGenericList -> isList
toGenericList -> toList
toXListRef -> toXVector
Test Plan: Imported from OSS
Reviewed By: suo
Differential Revision: D19369767
Pulled By: zdevito
fbshipit-source-id: 4f0078f95b83e6586524c03f7bcf206722fdd9ae
