in switch patterns

Change-Id: I899f805078472f09201c573f8711a16f76413135
Signed-off-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com>
Reviewed-on: https://git.eclipse.org/r/c/jdt/eclipse.jdt.core/+/184842
Tested-by: JDT Bot <jdt-bot@eclipse.org>
Reviewed-by: Manoj Palat <manpalat@in.ibm.com>