Updated and revised some tests

tests/scripts/test_scopes.toy

@@ -1,17 +1,18 @@
 //shadowing
 var answer = 42;
-print answer; //42
+
+assert answer == 42;
 {
 	var answer = 7;
-	print answer; //7
+	assert answer == 7;
 }
-print answer; //42
+assert answer == 42;
 
 //rebinding
 var question = 42;
-print question; //42
+assert question == 42;
 {
 	var question = question;
-	print question; //42
+	assert question == 42;
 }
-print question; //42
+assert question == 42;