When invoking Find Usages on a method which is sibling-inherited, include the method itself (along with found super-sibling) to the primary elements because otherwise it can't sometimes be found by super-sibling alone.

GitOrigin-RevId: 2be6da78182c7b52527eaa7df5f64b8522d94bee

java/java-tests/testData/psi/search/findUsages/siblingFindUsages/A.java

@@ -0,0 +1,18 @@
+interface WatchNode {
+  void setObsolete();
+}
+
+abstract class XValueContainerNode {
+  public void setObsolete() {
+  }
+}
+
+class WatchNodeImpl extends XValueContainerNode implements WatchNode {
+
+}
+
+class Use {
+  void fff(XValueContainerNode node) {
+    node.setObsolete();
+  }
+}