fileselector: full file name in symbol view not visible

On hover, the full file name should be shown in a “tooltip”

(from redmine: issue id 2242, created on 2015-07-01 by Christian.Glaser, closed on 2015-09-22)

• Changesets:
  • Revision 2343 by Fabian Heidemann on 2015-09-22T14:19:20Z:

fix #2242
fix #2224

• Revision 2343 by Fabian Heidemann on 2015-09-22T14:19:20Z:

fix #2242
fix #2224