Replaced location setting with forceMove()

I'm restricting this only to the machine's I'm affecting with this fix.
Refactoring the rest of the code to use it would be for a different
thing.

code/game/dna/dna_modifier.dm

@@ -218,7 +218,7 @@
 
 		beaker = item
 		if(user.drop_item())
-			item.loc = src
+			item.forceMove(src)
 			user.visible_message("[user] adds \a [item] to \the [src]!", "You add \a [item] to \the [src]!")
 			return
 		else

code/game/machinery/Sleeper.dm

@@ -299,9 +299,9 @@
 /obj/machinery/sleeper/attackby(var/obj/item/weapon/G as obj, var/mob/user as mob, params)
 	if(istype(G, /obj/item/weapon/reagent_containers/glass))
 		if(!beaker)
-			beaker = G
 			if (user.drop_item())
-				G.loc = src
+				beaker = G
+				G.forceMove(src)
 				user.visible_message("[user] adds \a [G] to \the [src]!", "You add \a [G] to \the [src]!")
 				src.updateUsrDialog()
 				return

code/game/machinery/cryo.dm

@@ -280,7 +280,7 @@
 
 		beaker =  G
 		if(user.drop_item())
-			G.loc = src
+			G.forceMove(src)
 			user.visible_message("[user] adds \a [G] to \the [src]!", "You add \a [G] to \the [src]!")
 		else
 			user << "The [G] is stuck to you!"

code/game/machinery/iv_drip.dm

@@ -64,7 +64,7 @@
 			return
 
 		if(user.drop_item())
-			W.loc = src
+			W.forceMove(src)
 			src.beaker = W
 			user << "You attach \the [W] to \the [src]."
 			src.update_icon()

code/modules/reagents/Chemistry-Machinery.dm

@@ -219,7 +219,7 @@
 	if(istype(B, /obj/item/weapon/reagent_containers/glass) || istype(B, /obj/item/weapon/reagent_containers/food/drinks))
 		src.beaker =  B
 		if(user.drop_item())
-			B.loc = src
+			B.forceMove(src)
 			user << "You set [B] on the machine."
 			nanomanager.update_uis(src) // update all UIs attached to src
 			if(!icon_beaker)