Revised tests

tests/scripts/basics/test_scope_resolution.toy

@@ -0,0 +1,18 @@
+//shadowing
+var answer = 42;
+
+assert answer == 42;
+{
+	var answer = 7;
+	assert answer == 7;
+}
+assert answer == 42;
+
+//rebinding
+var question = 42;
+assert question == 42;
+{
+	var question = question;
+	assert question == 42;
+}
+assert question == 42;