This reverts commit 53e68762.

* allow marking a golden check as flaky

* add matchesFlutterGolden to analyze.dart; no tags for flutter_goldens/lib

* Pause

* ++

* ++

* Analyzer therapy

* Once more with feeling

* Nits

* Review feedback

* Silly oops

* Test progress

* More tests

* Finish

* Nits

* Analyzer

* Review feedback
Co-authored-by: Yegor Jbanov <yjbanov@google.com>

* Can show context menus anywhere in the app, not just on text.
* Unifies all desktop/mobile context menus to go through one class (ContextMenuController).
* All context menus are now just plain widgets that can be fully customized.
* Existing default context menus can be customized and reused.

This reverts commit 2fdfa29e.

Allows the creation of virtual in-app keyboards written in Flutter.  Especially useful for embedded environments.

This implements a MenuBar widget that can render a Material menu bar, and a MenuAnchor widget used to create a cascading menu in a region. The menus are drawn in the overlay, while the menu bar itself is in the regular widget tree. Keyboard traversal works between the two.

This implementation of the MenuBar uses MenuAnchor to create a cascading menu that contains widgets representing the menu items. These menu items can be any kind of widget, but are typically SubmenuButtons that host submenus, or MenuItemButtons that have shortcut hints (but don't actually activate the shortcuts) and don't host submenus.

Cascading menus can be created outside of a MenuBar by using a MenuAnchor. They can be either given a specific location to appear (a coordinate), or they can be located by the MenuAnchor region that wraps the control that opens them.

The developer may also create a MenuController to pass to the various menu primitives (MenuBar or MenuAnchor) to associate menus so that they can be traversed together and closed together. Creating a controller is not required.

This reverts commit 7242ea22.

* Added support for surfaceTintColor and shadowColor to the Dialog widgets.
* Updated the defaults for Material.shadowColor and Material.surfaceTint to allow turning off the features with a transparent color.
* Added support for shadowColor and surfaceTintColor for Drawer widget.

This reverts commit 79013b2b.

* Add clipBehavior to Card+InkWell example

* Add test for example

* Update comment

This reverts commit b3aba4d9 because it breaks Google tests.

* Revert "Revert "Set `IconButton.visualDensity` default to `VisualDensity.standard` (#109349)" (#109421)"
Co-authored-by: Qun Cheng <quncheng@google.com>

This reverts commit 3070baf1.

* Set IconButton's visualDensity to standard
Co-authored-by: Qun Cheng <quncheng@google.com>