NaNs completely deadlock draw.line

[Starbuck5]

import math
import pygame

pygame.init()

surf = pygame.Surface((500,500))

print("Starting")

pygame.draw.line(surf, "black", (0, 0), (math.nan, 100))

print("Done!")

This test script makes pygame-ce completely unresponsive, it can't even be CTRL-Ced.

I haven't looked into other draw functions.

[Starbuck5]

Originally reported by lucy at https://discord.com/channels/772505616680878080/772940667231928360/1358118921626059112, but I also ran into it testing #3402

[damusss]

I noticed something similar in one of my recent apps, especially if all points of pygame.draw.lines are nan.