[cleanup] Resolved type safety warnings

Added type parameter for collections where appropriate

Change-Id: Ie65f5e2d86243bab04c0c5ecb2e5af609c82a456
Signed-off-by: Alexander Fedorov <alexander.fedorov@arsysop.ru>
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.team/+/183226
Tested-by: Platform Bot <platform-bot@eclipse.org>
10 files changed