The table should be highlighted when user selects table contents with keyboard (Ctrl+A, Shift+Arrow)

[Christophe Guillou]

*Can reproduce on IE9, IE 10, IE 11, Firefox 29 *Can't reproduce on Chrome 35, Safari 7

Tested on ​http://dubxpcvm022.mul.ie.ibm.com/ckeditor/4.3.X/4.3.2/20140324-1514/ckeditor/samples/skins.html

===Steps to reproduce===

1. Insert a table

2. Type something in the table

3. Press Ctrl + A to select all contents

4. Check the table

*Please refer the attachment to get more detail

===Expected Result=== The table should be highlighted when user press ctrl + A to select all contents

===Actual Result=== Only the text in the table is highlighted

[Christophe Guillou]

Link URL to recreate: ​http://nightly.ckeditor.com/14-05-30-06-06/full/samples/uilanguages.html

[Jakub Ś]

1. This issue is part of a larger one #12123.
2. We have empty table cell mouse selection mentioned in ticket #8830. This ticket on the other mentiones selection with keyboard.
3. Not only Ctrl+A but also Shift+Arrow should be covered.
4. @cguillou perhaps you will be interested in partial workaround mentioned in #8830? Please check the attached file - selectEmptyCellsIE.html. This file allows selecting empty table cells with mouse and keyboard. The only problem is that visible selection is small and to handle this we will have to add custom CSS class to each cell on various event what requires some coding.