Use heap_allocator for all hash set types

src/check_builtin.cpp

@@ -3086,7 +3086,7 @@ gb_internal bool check_builtin_procedure(CheckerContext *c, Operand *operand, As
 			}
 		}
 		StringSet name_set = {};
-		string_set_init(&name_set, heap_allocator(), 2*ce->args.count);
+		string_set_init(&name_set, 2*ce->args.count);
 
 		for_array(i, ce->args) {
 			String name = {};