Bug 549179 - Adding project to a run configuration with a dependency to
a project that is already in the run configration

Change-Id: I56d077f6418554808461f8c4d9d21bedea58bd4e
Reviewed-on: https://git.eclipse.org/r/c/jdt/eclipse.jdt.debug/+/187301
Tested-by: JDT Bot <jdt-bot@eclipse.org>
Tested-by: Sarika Sinha <sarika.sinha@in.ibm.com>
Reviewed-by: Dieter Mai <maidieter@googlemail.com>
Reviewed-by: Sarika Sinha <sarika.sinha@in.ibm.com>