analysis fix

Author: tomarra

lib/src/matchers.dart

@@ -27,6 +27,7 @@ Matcher isRoute<T extends Object?>({
 }) {
   // Remove once `named` argument is removed.
   if (whereName == null && named != null) {
+    // Nullable parameter so assignment is OK
     // ignore: parameter_assignments
     whereName = equals(named);
   }

test/src/matchers_test.dart

@@ -51,9 +51,11 @@ void main() {
       group('constructor', () {
         test('wraps deprecated name value in equals matcher', () {
           expect(
+            // Specifically testing deprecated member here
             // ignore: deprecated_member_use_from_same_package
             isRoute(named: '/test'),
             isA<dynamic>().having(
+              // Expecting Dynamic here
               // ignore: avoid_dynamic_calls
               (dynamic m) => m.whereName,
               'whereName',