Internal error on ARC/ORC when using forward declaration of finalizer proc

[arkanoid87]

Example

compile with --gc:arc

type Foo = ref object
proc delete(self: Foo) 
proc newFoo: Foo = new(result, delete)
proc delete(self: Foo) = echo("delete Foo")

if isMainModule:
  proc test() = discard newFoo()
  test()

Current Output

Error: internal error: expr: proc not init delete

Expected Output

delete foo

Additional Information

Tested nim version 1.4.2 up to devel (15e3813)

If using type Foo = ref object of RootObj the problem is different: code compiles but silently skips finalizer call. I'm opening an independent issue for that.