Remove the last of the major todos

crates/gpui/src/platform/test/platform.rs

@@ -102,6 +102,10 @@ impl TestPlatform {
             })
             .detach();
     }
+
+    pub(crate) fn did_prompt_for_new_path(&self) -> bool {
+        self.prompts.borrow().new_path.len() > 0
+    }
 }
 
 impl Platform for TestPlatform {