updated dart_scope to not renamed wildcard and skipped related test case

Author: jyameo

dwds/lib/src/debugging/dart_scope.dart

@@ -60,16 +60,6 @@ Future<List<Property>> visibleVariables({
     final objectId = scope.object.objectId;
     if (objectId != null) {
       final properties = await inspector.getProperties(objectId);
-      for (final property in properties) {
-        if (property.name == '_\$35wc2\$35formal') {
-          final newProperty = Property({
-            'name': '_',
-            'value': property.value,
-          });
-          properties.remove(property);
-          properties.add(newProperty);
-        }
-      }
       allProperties.addAll(properties);
     }
   }

dwds/test/common/chrome_proxy_service_common.dart

@@ -1555,7 +1555,9 @@ void runTests({
         expect(first.vars, hasLength(greaterThanOrEqualTo(1)));
         final underscore = first.vars!.firstWhere((v) => v.name == '_');
         expect(underscore, isNotNull);
-      });
+        },
+        skip: 'https://github.com/dart-lang/webdev/issues/2570',
+      );
 
       test('collects async frames', () async {
         final stack = await breakAt('asyncCall');