That #pragma proves this to have been a separate translation unit… but
it at least sort of fits into `hud.cpp`. Could have gone either way.
Part of P0245, funded by [Anonymous], Blue Bolt, Ember2528, and Yanga.
Oh look, a small TH02-only commit! Might as well decompile the small
function in front of TH02's overlay_wipe(), so that I can include it
in the next commit.
Part of P0225, funded by Enderwolf, Blue Bolt, 32th System, and Yanga.