Miri: Provide pointer forcing methods for MemPlace and Op #62441
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These are useful when one wants to to a lot of work with some place or operand and not to int-to-ptr casts all the time. In particular, this is needed to fix some test failures in Miri: we need to normalize before starting a visitor that walks a run-time value, so that we can later be sure (during the visitor walk) that we have a proper
Pointer
.Also see the Miri side at rust-lang/miri#830.
Cc @eddyb @oli-obk