Fix Breakpoint custom label not showing in containers

This commit fixes custom breakpoint labels not being rendered in
breakpoints view when breakpoints organized based on any groupings

Author: SougandhS

debug/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/model/elements/BreakpointLabelProvider.java

@@ -32,10 +32,9 @@ public class BreakpointLabelProvider extends DebugElementLabelProvider {
 	@Override
 	protected String getLabel(TreePath elementPath, IPresentationContext presentationContext, String columnId, int columnIndex) throws CoreException {
 		if (columnIndex == 0) {
-			if (elementPath.getFirstSegment() instanceof Breakpoint breakpoint) {
-				if (breakpoint.getBreakpointLabel() != null) {
-					return breakpoint.getBreakpointLabel();
-				}
+			if (elementPath.getLastSegment() instanceof Breakpoint breakpoint
+					&& breakpoint.getBreakpointLabel() != null) {
+				return breakpoint.getBreakpointLabel();
 			}
 			return super.getLabel(elementPath, presentationContext, columnId, columnIndex);
 		} else {