Improve "did you mean" message when meaning to use object singleton type

[scf37]

Compiler version

3.0.1

Minimized code

object Foo:
  case object Boo

object Main:
  def main(args: Array[String]) =
    type t = Option[Foo.Boo]

Output

error] -- [E008] Not Found Error: /tmp/1/Main.scala:7:24 ------------------------------
[error] 7 |    type t = Option[Foo.Boo]
[error]   |                    ^^^^^^^
[error]   |           type Boo is not a member of object Foo - did you mean Foo.Boo$?
[error] one error found
[error] one error found
[error] (Compile / compileIncremental) Compilation failed

Expectation

type Boo is not a member of object Foo - did you mean Foo.Boo.type?

[bjornregnell]

I have suggested to assign myself to this at the coming Issue Spree Aug 24.