Ignore type of projections for upvar capturing
Fix#89606
Ignore type of projections for upvar capturing. Originally HashMap is used, and the hash/eq implementation of Place takes the type of projections into account. These types may differ by lifetime which causes #89606 to ICE.
I originally considered erasing regions but `place.ty()` is used when creating upvar tuple type, more than just serving as a key type, so I switched to a linear comparison with custom eq (`compare_place_ignore_ty`) instead.
r? `@wesleywiser`
`@rustbot` label +T-compiler
7cc8c44871