d75577fcee
3483: Unfold groups with single assists into plain assists r=matklad a=SomeoneToIgnore A follow-up of https://github.com/rust-analyzer/rust-analyzer/pull/3120/files#r378788698 , made to show more detailed label when the assist group contains a single element Co-authored-by: Kirill Bulatov <mail4score@gmail.com>