JAWS issues with interacting Context menu in 4.0

[Satya Minnekanti]

To reproduce the defect:

1. with JAWS on, open any CK Editor sample, insert a table & navigate to a table cell.

2. Press Shift + F10 to open context menu.

3. Reach an item with submenu and press ENTER to open it.

Expected Result: Sub menu opens, JAWS reads context menu & when we use down arrow key JAWS will read options in Sub menu.

Actual Result: Sub menu opens, JAWS reads context menu, when we use down arrow keys JAWS reads Sub menu option names, but Focus not shown when we navigates through the options.

This is only happening on 4.0 & not on 3.6.x builds.

Verified with both JAWS 13 & 14.

[Frederico Caldeira Knabben]

I'm removing the part of the ticket that is a dup of #9543.