definitions search: distinguish show implementations and goto implementations

java/java-impl/src/com/intellij/codeInsight/hint/actions/ShowSiblingsAction.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2015 JetBrains s.r.o.
+ * Copyright 2000-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -73,6 +73,11 @@ public class ShowSiblingsAction extends ShowImplementationsAction {
     }
   }
 
+  @Override
+  protected boolean isSearchDeep() {
+    return true;
+  }
+
   private void showSiblings(boolean invokedByShortcut,
                             @NotNull Project project,
                             Editor editor,