Merge pull request #9764 from Ghommie/Ghommie-cit335

Dreamchecker compatibility changes, part 1.

code/__HELPERS/_lists.dm

@@ -124,6 +124,7 @@
 
 //returns a new list with only atoms that are in typecache L
 /proc/typecache_filter_list(list/atoms, list/typecache)
+	RETURN_TYPE(/list)
 	. = list()
 	for(var/thing in atoms)
 		var/atom/A = thing
@@ -131,6 +132,7 @@
 			. += A
 
 /proc/typecache_filter_list_reverse(list/atoms, list/typecache)
+	RETURN_TYPE(/list)
 	. = list()
 	for(var/thing in atoms)
 		var/atom/A = thing
@@ -257,6 +259,7 @@
 
 //Pick a random element from the list and remove it from the list.
 /proc/pick_n_take(list/L)
+	RETURN_TYPE(L[_].type)
 	if(L.len)
 		var/picked = rand(1,L.len)
 		. = L[picked]

code/__HELPERS/_logging.dm

@@ -7,7 +7,7 @@
 #define WRITE_LOG(log, text) rustg_log_write(log, text)
 
 //print a warning message to world.log
-#define WARNING(MSG) warning("[MSG] in [__FILE__] at line [__LINE__] src: [src] usr: [usr].")
+#define WARNING(MSG) warning("[MSG] in [__FILE__] at line [__LINE__] src: [UNLINT(src)] usr: [usr].")
 /proc/warning(msg)
 	msg = "## WARNING: [msg]"
 	log_world(msg)