[K2] Ambiguous KDoc link with the same name

[vmishenev]

            /**
            *  [AllKDocTagsClass]
            */
            class AllKDocTagsClass {
                class AllKDocTagsClass
            }

In K1 [AllKDocTagsClass] leads to AllKDocTagsClass.AllKDocTagsClass class. In K2 it leads to the first AllKDocTagsClass.

Related: #3179