`ModalBarrier`'s gesture recognizer does not call `invokeCallback` (#125386)

Close #125385 - please see explanations there :)

If you think this PR looks OK, I will polish it (e.g. copy-and-paste-and-modify the tests shown in #125385 into here and make CI pass)

packages/flutter/lib/src/widgets/modal_barrier.dart

@@ -394,7 +394,9 @@ class _AnyTapGestureRecognizer extends BaseTapGestureRecognizer {
   @protected
   @override
   void handleTapUp({PointerDownEvent? down, PointerUpEvent? up}) {
-    onAnyTapUp?.call();
+    if (onAnyTapUp != null) {
+      invokeCallback('onAnyTapUp', onAnyTapUp!);
+    }
   }
 
   @protected

packages/flutter/test/widgets/modal_barrier_test.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart' show PointerDeviceKind, kSecondaryButton;
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
@@ -399,6 +400,29 @@ void main() {
       expect(dismissCallbackCalled, true);
     });
 
+    testWidgets('when onDismiss throws, should have correct context', (WidgetTester tester) async {
+      final FlutterExceptionHandler? handler = FlutterError.onError;
+      FlutterErrorDetails? error;
+      FlutterError.onError = (FlutterErrorDetails details) {
+        error = details;
+      };
+
+      final UniqueKey barrierKey = UniqueKey();
+      await tester.pumpWidget(MaterialApp(
+        home: Scaffold(
+          body: ModalBarrier(
+            key: barrierKey,
+            onDismiss: () => throw Exception('deliberate'),
+          ),
+        ),
+      ));
+      await tester.tap(find.byKey(barrierKey));
+      await tester.pump();
+
+      expect(error?.context.toString(), contains('handling a gesture'));
+      FlutterError.onError = handler;
+    });
+
     testWidgets('will not pop when given an onDismiss callback', (WidgetTester tester) async {
       final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
         '/': (BuildContext context) => const FirstWidget(),