//! useful and (worse) less predictable. The user should have a clear
//! intuition when each particular assist is available.
//! * Make small assists, which compose. Example: rather than auto-importing
-//! enums in `fill_match_arms`, we use fully-qualified names. There's a
+//! enums in `add_missing_match_arms`, we use fully-qualified names. There's a
//! separate assist to shorten a fully-qualified name.
//! * Distinguish between assists and fixits for diagnostics. Internally, fixits
//! and assists are equivalent. They have the same "show a list + invoke a