REPL does not print toString of value classes

[bishabosha]

Compiler version

3.1.3

Minimized code

scala> class UInt(val toInt: Int) extends AnyVal
// defined class UInt

scala> val foo = UInt(23)
val foo: UInt = 23
                                                                                                                                 
scala> foo.toString
val res1: String = UInt@17

Expectation

I expect UInt@17 both times, as is in Scala 2 REPL

[som-snytt]

I might have expected 23 both times, except 23 is a pun for literal types.

It's also eerie that magic number 17 appears in the result.

[rochala]

@som-snytt 17 is not a magic number. It's hex for 23.