Print clipBehavior while debugging ClipXXXLayer (#45716)

Fixes https://github.com/flutter/flutter/issues/45587

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

@@ -1294,6 +1294,7 @@ class ClipRectLayer extends ContainerLayer {
   void debugFillProperties(DiagnosticPropertiesBuilder properties) {
     super.debugFillProperties(properties);
     properties.add(DiagnosticsProperty<Rect>('clipRect', clipRect));
+    properties.add(DiagnosticsProperty<Clip>('clipBehavior', clipBehavior));
   }
 }
 
@@ -1374,6 +1375,7 @@ class ClipRRectLayer extends ContainerLayer {
   void debugFillProperties(DiagnosticPropertiesBuilder properties) {
     super.debugFillProperties(properties);
     properties.add(DiagnosticsProperty<RRect>('clipRRect', clipRRect));
+    properties.add(DiagnosticsProperty<Clip>('clipBehavior', clipBehavior));
   }
 }
 
@@ -1449,6 +1451,12 @@ class ClipPathLayer extends ContainerLayer {
     if (enabled)
       builder.pop();
   }
+
+  @override
+  void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+    super.debugFillProperties(properties);
+    properties.add(DiagnosticsProperty<Clip>('clipBehavior', clipBehavior));
+  }
 }
 
 /// A composite layer that applies a [ColorFilter] to its children.

packages/flutter/test/rendering/layers_test.dart

@@ -224,6 +224,38 @@ void main() {
     expect(layer.debugSubtreeNeedsAddToScene, true);
   }
 
+  List<String> _getDebugInfo(Layer layer) {
+    final DiagnosticPropertiesBuilder builder = DiagnosticPropertiesBuilder();
+    layer.debugFillProperties(builder);
+    return builder.properties
+        .where((DiagnosticsNode node) => !node.isFiltered(DiagnosticLevel.info))
+        .map((DiagnosticsNode node) => node.toString()).toList();
+  }
+
+  test('ClipRectLayer prints clipBehavior in debug info', () {
+    expect(_getDebugInfo(ClipRectLayer()), contains('clipBehavior: Clip.hardEdge'));
+    expect(
+      _getDebugInfo(ClipRectLayer(clipBehavior: Clip.antiAliasWithSaveLayer)),
+      contains('clipBehavior: Clip.antiAliasWithSaveLayer'),
+    );
+  });
+
+  test('ClipRRectLayer prints clipBehavior in debug info', () {
+    expect(_getDebugInfo(ClipRRectLayer()), contains('clipBehavior: Clip.antiAlias'));
+    expect(
+      _getDebugInfo(ClipRRectLayer(clipBehavior: Clip.antiAliasWithSaveLayer)),
+      contains('clipBehavior: Clip.antiAliasWithSaveLayer'),
+    );
+  });
+
+  test('ClipPathLayer prints clipBehavior in debug info', () {
+    expect(_getDebugInfo(ClipPathLayer()), contains('clipBehavior: Clip.antiAlias'));
+    expect(
+      _getDebugInfo(ClipPathLayer(clipBehavior: Clip.antiAliasWithSaveLayer)),
+      contains('clipBehavior: Clip.antiAliasWithSaveLayer'),
+    );
+  });
+
   test('mutating PictureLayer fields triggers needsAddToScene', () {
     final PictureLayer pictureLayer = PictureLayer(Rect.zero);
     checkNeedsAddToScene(pictureLayer, () {