Correct completion after "super."

#KT-8406 Fixed

idea/idea-completion/testData/basic/common/SuperMembers2.kt

@@ -0,0 +1,17 @@
+interface I {
+    fun abstractFun()
+    val abstractVal: Int
+    fun nonAbstractFun(){}
+}
+
+class A : I {
+    override fun abstractFun() {
+        super.<caret>
+    }
+}
+
+// ABSENT: abstractFun
+// ABSENT: abstractVal
+// EXIST: { itemText: "nonAbstractFun", attributes: "bold" }
+// EXIST: { itemText: "equals", attributes: "bold" }
+// EXIST: { itemText: "hashCode", attributes: "bold" }