* add trailing commas on list/map/parameters
* add trailing commas on Invocation with nb of arg>1
* add commas for widget containing widgets
* add trailing commas if instantiation contains trailing comma
* revert bad change
* Fix#16464: Pass hit test when a big child is inside RenderFittedBox, RenderTransform, RenderFractionalTranslation, or RenderFollowerLayer
* Override `hitTestChildren`
* RenderTransform and RenderFollowerLayer shouldn't check if they are hit
themselves
* Test the hit test for translated child into translated box
* Add hit test for `FractionalTranslation`
* Don't check if RenderFractionalTranslation is hit themself
* Add hit test for FractionalTranslation
* Add test for FractionalTranslation
For backward compatibility we keep supporting specifying the shape as a
combination of MaterialType and borderRadius, and we just use that as a
default when shapeBorder is null.
To cleanup the implementation if shapeBorder was not specified we just
translate the specified shape to a shapeBorder internally.
I benchmarked paint, layout and hit testing, with the specialized shape
clippers vs. the equivalent path clippers and did not see any
significant performance difference.
For testing, I extended the clippers/physicalShape matchers to match either the
specialized shape or the equivalent shape.
