Draw tool button menu indicator relative to frame, not content, so that
padding added in the stylesheet creates room between text and indicator.
Also, prevent another double-arrow by ignoring menu indicator rendering
when a menu button subcontrol is used, as the two are mutually
exclusive. This amends 1c338e6d07.
Add problematic case to stylesheet baseline test.
Fixes: QTBUG-102866
Pick-to: 6.3 6.2
Change-Id: I5d79e65b33a2e41ac07c8efe0c15697c5be65201
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
9d41bd4312