note down some bugs in tests for later

samples/main_no_exit.tri

···
+proc main!() {
+    # main is allowed to run off with no value, treated as exit 0
+}

samples/main_return.tri

···
+proc main!() {
+    # return is treated same as exit in main
+    return 3
+}

trilogy/tests/samples.rs

···
     let mut program = include_tri!("module_params.tri");
     assert_eq!(program.run().unwrap(), Value::from(8));
 }
+
+#[test]
+#[ignore = "not yet working"]
+fn sample_main_no_exit() {
+    let mut program = include_tri!("main_no_exit.tri");
+    assert_eq!(program.run().unwrap(), Value::from(0));
+}
+
+#[test]
+#[ignore = "not yet working"]
+fn sample_main_return() {
+    let mut program = include_tri!("main_return.tri");
+    assert_eq!(program.run().unwrap(), Value::from(3));
+}