Add special case for object trees.

src/wasm_test/diff.rs

@@ -55,7 +55,7 @@ impl<'s> WasmDiffResult<'s> {
         original_document: &str,
     ) -> Result<(), Box<dyn std::error::Error>> {
         let status_text = {
-            if self.is_bad() {
+            if self.is_self_bad() {
                 format!(
                     "{color}BAD{reset}",
                     color = foreground_color(255, 0, 0),