[BUG] Can't explicitly type a variable set to __init__ of some struct

[soraros]

Bug description

As title. CC. @lattner.

It's extra bad since this example is taken from the change log.

Steps to reproduce

struct S:
  fn __init__(out self):
    pass

fn main():
  # error: function cannot have both an 'out' argument and an explicit result type; remove the '-> None' to fix it
  var f1: fn (out x: S) -> None = S.__init__

  # error: cannot implicitly convert 'fn(out self: S) -> None' value to 'fn() -> S' in 'var' initialize
  var f2: fn (out x: S) = S.__init__

  # this works
  var f3 = S.__init__

The first spelling does work for ordinary function with out argument though:

fn f(out self: Int):
  self = 0

fn main():
  var f1: fn (out x: Int) = f

System information

Mojo 25.1.0.dev2024121705 (67a9f701) on Docker, Intel Mac.

[soraros]

Does not reproduce any more on mojo 25.1.0.dev2024122405 (76eafd8b).