✨ feat(provider): add compile-time registry

lsp-server/test/run_lsp_json_tests.py

@@ -128,9 +128,23 @@ def validate_responses(by_id: dict[str, dict]) -> None:
     else:
         assert_error_code(resolved, -32603, "completion resolve response")
 
-    assert_error_code(by_id["4"], -32601, "definition response")
-    assert_error_code(by_id["5"], -32601, "rename response")
-    assert_error_code(by_id["6"], -32601, "references response")
+    definition = by_id["4"]
+    assert_has_key(definition, "result", "definition response")
+    definition_result = definition["result"]
+    if definition_result is not None and not isinstance(definition_result, (dict, list)):
+        raise RuntimeError("definition response should be a location, list of locations, or null")
+
+    rename = by_id["5"]
+    assert_has_key(rename, "result", "rename response")
+    rename_result = rename["result"]
+    if rename_result is not None and not isinstance(rename_result, dict):
+        raise RuntimeError("rename response should be a workspace edit or null")
+
+    references = by_id["6"]
+    assert_has_key(references, "result", "references response")
+    references_result = references["result"]
+    if not isinstance(references_result, list):
+        raise RuntimeError("references response should be a list of locations")
 
     shutdown = by_id["7"]
     if "error" in shutdown: