Scaladoc renders `<none>` instead of type member name in structural type projection with type lambda

[WojciechMazur]

Seen in #24510

Compiler version

3.7.4
3.8.0-RC1
3.8.1-nightly
Probably all Scala versions

Minimized code

trait View[+A]
trait MapViewFactory extends MapFactory[({ type l[X, Y] = View[(X, Y)]})#l] 
trait MapFactory[+CC[_, _]] 

Output

Expectation

#<none> should be replaced with meaniful identifier