Fix #2994

[allanrenucci]

This reverts #2823.

Compiling:

object Test {
  object Energy {
    private def parse(value: Any) = ???
    def apply = parse _
  }

  Energy("")
}

now emits:

-- [E050] Reference Error: tests/allan/Test.scala:7:2 --------------------------
7 |  Energy("")
  |  ^^^^^^
  |  object Energy in object Test does not take parameters

But now compiling:

 case class Foo[T](x: T)
 object Foo { def apply[T]() = Foo(???) }

emits:

-- [E050] Reference Error: tests/allan/Test.scala:11:31 ------------------------
11 | object Foo { def apply[T]() = Foo(???) }
   |                               ^^^
   |                               object Foo does not take parameters

instead of

-- [E044] Syntax Error: tests/allan/Test.scala:11:31 ---------------------------
11 | object Foo { def apply[T]() = Foo(???) }
   |                               ^^^
   |                    overloaded or recursive method Foo needs return type

ref #1731

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[nicolasstucki]

We should add a test case in a repl scripted to make sure this regression does not happen again.

[allanrenucci]

I'd like to discuss this PR in the next Dotty meeting. It fixes #2994 but reopen #1731