[MIRROR] Rename freon_gas_act to freeze_turf [MDB IGNORE] (#8690)

* Rename freon_gas_act to freeze_turf (#61958)

This was only used from two places, neither of which involved freon.

* Rename freon_gas_act to freeze_turf

Co-authored-by: esainane <esainane+github@gmail.com>

code/game/turfs/open/_open.dm

@@ -232,7 +232,7 @@
 	air.temperature += temp
 	air_update_turf(FALSE, FALSE)
 
-/turf/open/proc/freon_gas_act()
+/turf/open/proc/freeze_turf()
 	for(var/obj/I in contents)
 		if(I.resistance_flags & FREEZE_PROOF)
 			continue

code/modules/atmospherics/gasmixtures/reactions.dm

@@ -74,7 +74,7 @@
 	var/turf/open/location = isturf(holder) ? holder : null
 	. = NO_REACTION
 	if (air.temperature <= WATER_VAPOR_FREEZE)
-		if(location?.freon_gas_act())
+		if(location?.freeze_turf())
 			. = REACTING
 	else if(air.temperature <= T20C + 10)
 		if(location?.water_vapor_gas_act())

code/modules/projectiles/projectile/special/temperature.dm

@@ -35,5 +35,5 @@
 	var/turf/T = get_turf(src)
 	if(isopenturf(T))
 		var/turf/open/O = T
-		O.freon_gas_act()
+		O.freeze_turf()
 	return ..()