expo: Test editing a lineedit

Open the lineedit and add a few characters, to check that things look
right.

At present when the user moves to a new menu item, the menu code
handles this immediately. This means it is not possible to use an expo
action to effect the same change.

Update this so that EXPOACT_POINT_ITEM is handled in cedit_do_action().

Expand the test to cover this.

Signed-off-by: Simon Glass <sjg@chromium.org>
1 file changed