?
identifier in kind-projector syntax.
Teh ?
identifier is going to be used for wildcard arguments in types in Scala 3 (see Wildcard Arguments in Types).
Its usage in kind-projector type lambdas is deprecated and is going to be superseeded by *
.
Example:
List[?]
After the quick-fix is applied:
List[*]
This inspection runs when the Kind Projector plugin is enabled.