Mirror.Of is not implemented for named tuples

[smarter]

Compiler version

3.6.2

Minimized code

import scala.language.experimental.namedTuples
import scala.deriving.*

summon[Mirror.Of[(Int, String)]] // OK

summon[Mirror.Of[(foo: Int, bla: String)]] // error

Output

  |No given instance of type scala.deriving.Mirror.Of[(foo : Int, bar : String)] was found for parameter x of method summon in object Predef. Failed to synthesize an instance of type scala.deriving.Mirror.Of[(foo : Int, bar : String)]:
  |     * class Any is not a generic product because it is not a case class
  |     * class Any is not a generic sum because it is not a sealed class

Expectation

Just like regular tuples, named tuples should have mirror instances because they are product types and mirrors allow for uniform meta-programming on sums and products types.

[bishabosha]

the contract for Mirror is "def m[T](foo: T)(using Mirror.ProductOf[T]) = foo.asInstanceOf[Product] doesnt crash" so this can work

[bishabosha]

@jchyb I guess it wont be much extra to introduce mirror for Tuple>22 (if we forgive that _N methods don't exist)

[jchyb]

Ah, sure. I forgot about that. I'll look into it

[bishabosha]

should probably put in the docs also that the MirroredLabel and MirroredElemLabels are for disambiguation/serialisation/pretty-printing purposes only, and don't necessarily correspond to a field/class that java reflection can access