Function frame_max_infinity 

pub fn frame_max_infinity(view: &ViewHandle, alignment: Alignment) -> ViewHandle

Apply .frame(maxWidth:maxHeight:alignment:) with .infinity for both.

Six Optional<CGFloat>s — min, ideal and max for each axis — then an Alignment, then the two generic words. Each optional is payload and tag, so that is sixteen words in all: x0 through x7 carry the first four optionals and the remaining eight go on the stack. The generic arguments come after every formal parameter, which is what makes them spill; putting them in x6 and x7 builds a frame out of the metadata pointers.