Rollup of 8 pull requests#107768

Merged

bors merged 16 commits intorust-lang:masterfrom

matthiaskrgr:rollup-9u4cal4

Feb 8, 2023

Commits on Feb 6, 2023

Remove `arena_cache` modifier from `upstream_monomorphizations_for`
WaffleLapkin
committed
Avoid locking the global context across the `after_expansion` callback
oli-obk
committed

Commits on Feb 7, 2023