cc rust-lang/rust#146329
see tests/ui/impl-trait/non-defining-uses/avoid-inference-constraints-from-blanket-2.rs
should revisit pre stabilization
ideally only use blanket impls if their only inference constraints are from using item bounds of opaques. Something something introduce MaybeCause::OpaqueTypeGuidance :3
cc rust-lang/rust#146329
see tests/ui/impl-trait/non-defining-uses/avoid-inference-constraints-from-blanket-2.rs
should revisit pre stabilization
ideally only use blanket impls if their only inference constraints are from using item bounds of opaques. Something something introduce
MaybeCause::OpaqueTypeGuidance:3