const_generics: Dont evaluate array length const when handling yet another error

Same ICE as rust-lang#82009 except triggered by a different error.
cc `@lcnr`
r? `@varkor`

Rollup of 10 pull requests

Successful merges:

 - rust-lang#81546 ([libtest] Run the test synchronously when hitting thread limit)
 - rust-lang#82066 (Ensure valid TraitRefs are created for GATs)
 - rust-lang#82112 (const_generics: Dont evaluate array length const when handling yet another error )
 - rust-lang#82194 (In some limited cases, suggest `where` bounds for non-type params)
 - rust-lang#82215 (Replace if-let and while-let with `if let` and `while let`)
 - rust-lang#82218 (Make sure pdbs are copied along with exe and dlls when bootstrapping)
 - rust-lang#82236 (avoid converting types into themselves (clippy::useless_conversion))
 - rust-lang#82246 (Add long explanation for E0549)
 - rust-lang#82248 (Optimize counting digits in line numbers during error reporting)
 - rust-lang#82256 (Print -Ztime-passes (and misc stats/logs) on stderr, not stdout.)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup