[6.1] Look through forwarding instructions while querying ownership root #78614
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Explanation: While looking for ownership reference root to determine if address uses are within it's lifetime, skip through struct_extract/tuple_extract and other forwarding operations.
Scope: CSE on functions in OSSA
Issues: rdar://142507746
Original PRs: #78557
Risk: Low.
Testing: Smoke test.
Reviewers: @nate-chandler