Distinguish between menus in ActionBar and popup. [DO NOT MERGE]

Mark the menus in the ActionBar and the ones in the Overflow popup
separately. This enables the IDE to differentiate between the two and
enable gestures such as double-click to open the menu xml for menus in
the ActionBar and single click for the menus in the Overflow popup.

Change-Id: I7a23f87d34d618a134ffbe3a665be695915d4bae
(cherry picked from commit f542f28a31b38a4e454535a1fea63968811b418c)