Uplift rustc_mir_transform::coverage::counters::union_find to rustc_data_structures. I was wondering if we had some union-find implementation in the compiler. We do. So put it where we can find it.
align_of_val::<[T]>(…)
align_of::<T>()
type_name
RemoveUnneededDrops
drop_in_place
tests/codegen
tests/codegen-llvm