Over-zealous warning about unintended implicit conversion

[rjolly]

Minimized code and Output

trait S[T] extends (T => T):
  def apply(x: T) = ???
  extension (x: T) def show: String

given S[Int]:
  extension (x: Int) def show = x.toString

println(10.show)
        ^^
The conversion given_S_Int.type will not be applied implicitly here in Scala 3 because only implicit methods and instances of Conversion class will continue to work as implicit views.

Expectation

It is not clear to me why the conversion should be considered here (at the extension method application). This warning should not be emitted, especially when not in -source:3.0-migration ; see #9998

Workaround

If we remove extends (T => T) the warning disappears.

[smarter]

Was this issue intentionally closed? It seems valid to me.

[rjolly]

I was happy with the workaround. Re-opening it.