02bee3abf0
Fixes https://github.com/flutter/flutter/issues/130775 On the Skia backend, antiAliasWithSaveLayer is the highest fidelity clipping option. In the Impeller backend, there isn't any difference in how we clip, since the stencil buffer is always used. Nevertheless we were still inserting the save layer, which results in an extra offscreen texture and is wasteful. Track if impeller is enabled in the diff/preroll/paint context and avoid inserting a save layer.