Incremental compilation ICE with predicates_of

[Aaron1011]

Anyone encountering this issue (or an issue linked here) can run either cargo clean or cargo clean -p <your_package_name> as a temporary workaround.

Since #83007 was merged, we now ICE during incremental compilation when the hash of a re-computed query result does not match the hash from a previous session.

There have been a very large number of bug reports, all involving predicates_of:

• Internal Compiler Error with RefCell #84336
• Fingerprints don't match #84237
• found unstable fingerprints for predicates_of(core[3998]::fmt::Debug)/predicates_of(core[3998]::clone::Clone) #84116

There are several common characteristics across these issues

• All of them involve calling predicate_of on a trait from the standard library, not user code.
• All of them involve remapped paths pointing into the local standard library source code.

I've been able to reproduce similar crashes to these by adding or removing the rust-src component between compilation sessions

[Aaron1011]

Blocked on #83813

[Aaron1011]

This was fixed by #84233, but still needs a regression test.