Remove unused FlutterErrorDetails subclasses (#61579)

packages/flutter/lib/src/gestures/pointer_router.dart

@@ -80,18 +80,17 @@ class PointerRouter {
       InformationCollector collector;
       assert(() {
         collector = () sync* {
-          yield DiagnosticsProperty<PointerEvent>('Event', event, style: DiagnosticsTreeStyle.errorProperty);
+          yield DiagnosticsProperty<PointerRouter>('router', this, level: DiagnosticLevel.debug);
+          yield DiagnosticsProperty<PointerRoute>('route', route, level: DiagnosticLevel.debug);
+          yield DiagnosticsProperty<PointerEvent>('event', event, level: DiagnosticLevel.debug);
         };
         return true;
       }());
-      FlutterError.reportError(FlutterErrorDetailsForPointerRouter(
+      FlutterError.reportError(FlutterErrorDetails(
         exception: exception,
         stack: stack,
         library: 'gesture library',
         context: ErrorDescription('while routing a pointer event'),
-        router: this,
-        route: route,
-        event: event,
         informationCollector: collector
       ));
     }
@@ -126,48 +125,3 @@ class PointerRouter {
     });
   }
 }
-
-/// Variant of [FlutterErrorDetails] with extra fields for the gestures
-/// library's pointer router ([PointerRouter]).
-///
-/// See also:
-///
-///  * [FlutterErrorDetailsForPointerEventDispatcher], which is also used
-///    by the gestures library.
-class FlutterErrorDetailsForPointerRouter extends FlutterErrorDetails {
-  /// Creates a [FlutterErrorDetailsForPointerRouter] object with the given
-  /// arguments setting the object's properties.
-  ///
-  /// The gestures library calls this constructor when catching an exception
-  /// that will subsequently be reported using [FlutterError.onError].
-  const FlutterErrorDetailsForPointerRouter({
-    dynamic exception,
-    StackTrace stack,
-    String library,
-    DiagnosticsNode context,
-    this.router,
-    this.route,
-    this.event,
-    InformationCollector informationCollector,
-    bool silent = false,
-  }) : super(
-    exception: exception,
-    stack: stack,
-    library: library,
-    context: context,
-    informationCollector: informationCollector,
-    silent: silent,
-  );
-
-  /// The pointer router that caught the exception.
-  ///
-  /// In a typical application, this is the value of [GestureBinding.pointerRouter] on
-  /// the binding ([GestureBinding.instance]).
-  final PointerRouter router;
-
-  /// The callback that threw the exception.
-  final PointerRoute route;
-
-  /// The pointer event that was being routed when the exception was raised.
-  final PointerEvent event;
-}

packages/flutter/lib/src/rendering/debug_overflow_indicator.dart

@@ -242,11 +242,10 @@ mixin DebugOverflowIndicatorMixin on RenderObject {
     // TODO(jacobr): add the overflows in pixels as structured data so they can
     // be visualized in debugging tools.
     FlutterError.reportError(
-      FlutterErrorDetailsForRendering(
+      FlutterErrorDetails(
         exception: FlutterError('A $runtimeType overflowed by $overflowText.'),
         library: 'rendering library',
         context: ErrorDescription('during layout'),
-        renderObject: this,
         informationCollector: () sync* {
           if (debugCreator != null)
             yield DiagnosticsDebugCreator(debugCreator);

packages/flutter/lib/src/rendering/object.dart

@@ -1319,12 +1319,11 @@ abstract class RenderObject extends AbstractNode with DiagnosticableTreeMixin im
   dynamic debugCreator;
 
   void _debugReportException(String method, dynamic exception, StackTrace stack) {
-    FlutterError.reportError(FlutterErrorDetailsForRendering(
+    FlutterError.reportError(FlutterErrorDetails(
       exception: exception,
       stack: stack,
       library: 'rendering library',
       context: ErrorDescription('during $method()'),
-      renderObject: this,
       informationCollector: () sync* {
         if (debugCreator != null)
           yield DiagnosticsDebugCreator(debugCreator);
@@ -3384,35 +3383,6 @@ mixin RelayoutWhenSystemFontsChangeMixin on RenderObject {
   }
 }
 
-/// Variant of [FlutterErrorDetails] with extra fields for the rendering
-/// library.
-class FlutterErrorDetailsForRendering extends FlutterErrorDetails {
-  /// Creates a [FlutterErrorDetailsForRendering] object with the given
-  /// arguments setting the object's properties.
-  ///
-  /// The rendering library calls this constructor when catching an exception
-  /// that will subsequently be reported using [FlutterError.onError].
-  const FlutterErrorDetailsForRendering({
-    dynamic exception,
-    StackTrace stack,
-    String library,
-    DiagnosticsNode context,
-    this.renderObject,
-    InformationCollector informationCollector,
-    bool silent = false,
-  }) : super(
-    exception: exception,
-    stack: stack,
-    library: library,
-    context: context,
-    informationCollector: informationCollector,
-    silent: silent,
-  );
-
-  /// The RenderObject that was being processed when the exception was caught.
-  final RenderObject renderObject;
-}
-
 /// Describes the semantics information a [RenderObject] wants to add to its
 /// parent.
 ///

packages/flutter/test/gestures/pointer_router_test.dart

@@ -153,6 +153,17 @@ void main() {
     FlutterError.onError = previousErrorHandler;
   });
 
+  test('Exceptions include router, route & event', () {
+    try {
+      final PointerRouter router = PointerRouter();
+      router.addRoute(2, (PointerEvent event) => throw 'Pointer exception');
+    } catch (e) {
+      expect(e, contains('router: Instance of \'PointerRouter\''));
+      expect(e, contains('route: Closure: (PointerEvent) => Null'));
+      expect(e, contains('event: PointerDownEvent#[a-zA-Z0-9]{5}(position: Offset(0.0, 0.0))'));
+    }
+  });
+
   test('Should transform events', () {
     final List<PointerEvent> events = <PointerEvent>[];
     final List<PointerEvent> globalEvents = <PointerEvent>[];

packages/flutter/test/widgets/widget_inspector_init_with_structured_error_test.dart

@@ -47,7 +47,7 @@ class StructuredErrorTestService extends TestWidgetInspectorService {
       expect(flutterErrorEvents, hasLength(0));
 
       // Create an error.
-      FlutterError.reportError(FlutterErrorDetailsForRendering(
+      FlutterError.reportError(FlutterErrorDetails(
         library: 'rendering library',
         context: ErrorDescription('during layout'),
         exception: StackTrace.current,

packages/flutter/test/widgets/widget_inspector_structure_error_test.dart

@@ -76,7 +76,7 @@ class StructureErrorTestWidgetInspectorService extends Object with WidgetInspect
           equals('true'));
 
         // Creates an error.
-        final FlutterErrorDetails expectedError = FlutterErrorDetailsForRendering(
+        final FlutterErrorDetails expectedError = FlutterErrorDetails(
           library: 'rendering library',
           context: ErrorDescription('during layout'),
           exception: StackTrace.current,

packages/flutter/test/widgets/widget_inspector_test.dart

@@ -2356,7 +2356,7 @@ class _TestWidgetInspectorService extends TestWidgetInspectorService {
             equals('true'));
 
         // Create an error.
-        FlutterError.reportError(FlutterErrorDetailsForRendering(
+        FlutterError.reportError(FlutterErrorDetails(
           library: 'rendering library',
           context: ErrorDescription('during layout'),
           exception: StackTrace.current,
@@ -2379,7 +2379,7 @@ class _TestWidgetInspectorService extends TestWidgetInspectorService {
                 '══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞════════════'));
 
         // Send a second error.
-        FlutterError.reportError(FlutterErrorDetailsForRendering(
+        FlutterError.reportError(FlutterErrorDetails(
           library: 'rendering library',
           context: ErrorDescription('also during layout'),
           exception: StackTrace.current,
@@ -2407,7 +2407,7 @@ class _TestWidgetInspectorService extends TestWidgetInspectorService {
         binding.postTest();
 
         // Send another error.
-        FlutterError.reportError(FlutterErrorDetailsForRendering(
+        FlutterError.reportError(FlutterErrorDetails(
           library: 'rendering library',
           context: ErrorDescription('during layout'),
           exception: StackTrace.current,