core: Fix using list.

core/classes/tuple/tuple-tests.factor

@@ -1,3 +1,11 @@
+USING: accessors arrays assocs calendar classes classes.algebra
+classes.private classes.tuple classes.tuple.private columns
+combinators.short-circuit combinators.smart.syntax
+compiler.errors compiler.units definitions eval generic
+generic.single io.streams.string kernel kernel.private math
+math.constants memory namespaces parser parser.notes see
+sequences sequences.private slots splitting strings threads
+tools.test vectors vocabs words words.symbol ;
 IN: classes.tuple.tests
 
 TUPLE: rect x y w h ;