request: want CocoaWindow to return uintptr

[hajimehoshi]

glfw/v3.3/glfw/native_darwin.go

Line 29 in e5ec435

func (w *Window) GetCocoaWindow() unsafe.Pointer {

In 3.2, CocoaWindow returned uintptr but in 3.3, this returns unsafe.Poitner. As unsafe.Pointer means a pointer that GC can collect, uintptr should be more natural.

@pchampio What do you think? Is there a strong reason to use unsafe.Pointer here?

[pchampio]

#230
go-gl/gl#113 (comment)

[hajimehoshi]

Ah, I forgot that completely :-) Thanks!