RemoveRedundantQualifierNameInspection: add regression test

#KT-35898

idea/testData/inspectionsLocal/removeRedundantQualifierName/kt35898.kt

@@ -0,0 +1,8 @@
+// PROBLEM: none
+
+class Test1<T: Any> {
+    private inner class Cell
+    fun check(o: Any) {
+        (o as? Test1<caret><*>.Cell)
+    }
+}