Automated g4 rollback of changelist 471650729.

*** Reason for rollback ***

Breaks GPay tap (pay.flutter.tap)

https://fusion2.corp.google.com/ci;ids=1912127488/tap/pay.flutter.tap/activity/471652072/targets

*** Original change description ***

Include `required` keyword in functions used as default return values.

***

PiperOrigin-RevId: 471719348

Author: srawlins

CHANGELOG.md

@@ -5,7 +5,6 @@
 * Allow generating a mock class which includes overriding members with private
   types in their signature. Such members cannot be stubbed with mockito, and
   will only be generated when specified in MockSpec `unsupportedMembers`.
-* Include `required` keyword in functions used as default return values.
 
 ## 5.3.0
 

lib/src/builder.dart

@@ -1492,11 +1492,7 @@ class _MockClassInfo {
               superParameterType: parameter.type, defaultName: '__p$position');
           b.optionalParameters.add(matchingParameter);
           position++;
-        } else if (parameter.isOptionalNamed) {
-          final matchingParameter =
-              _matchingParameter(parameter, superParameterType: parameter.type);
-          b.optionalParameters.add(matchingParameter);
-        } else if (parameter.isRequiredNamed) {
+        } else if (parameter.isNamed) {
           final matchingParameter =
               _matchingParameter(parameter, superParameterType: parameter.type);
           b.optionalParameters.add(matchingParameter);
@@ -1599,7 +1595,6 @@ class _MockClassInfo {
             _typeReference(superParameterType, forceNullable: forceNullable);
       }
       if (parameter.isNamed) pBuilder.named = true;
-      if (parameter.isRequiredNamed) pBuilder.required = true;
       if (parameter.defaultValueCode != null) {
         try {
           pBuilder.defaultTo = _expressionFromDartObject(

test/builder/auto_mocks_test.dart

@@ -1524,7 +1524,7 @@ void main() {
           void m({required covariant int a});
         }
         '''),
-      _containsAllOf('void m({required num? a}) => super.noSuchMethod('),
+      _containsAllOf('void m({num? a}) => super.noSuchMethod('),
     );
   });
 
@@ -2455,23 +2455,6 @@ void main() {
     );
   });
 
-  test(
-      'creates a dummy non-null function-typed return value, with required '
-      'named parameters', () async {
-    await expectSingleNonNullableOutput(
-      dedent(r'''
-      abstract class Foo {
-        void Function(Foo, {required bool b}) m();
-      }
-      '''),
-      _containsAllOf('''
-        returnValue: (
-          _i2.Foo __p0, {
-          required bool b,
-        }) {},'''),
-    );
-  });
-
   test(
       'creates a dummy non-null function-typed return value, with non-core '
       'return type', () async {