fix "illegal" inheritance

Several classes in the RCP are not ment to be subclassed. Inheriting
from such classes outside of their original bundle is called "illegal".
This change fixes such illegal inheritance dependencies.

Change-Id: I393e48bbb5b4914425a3e1c659914126d67c9882
Signed-off-by: Florian Thienel <florian@thienel.org>
3 files changed