KT-8968 Special completion after "super."

#KT-8968 Fixed

idea/idea-completion/testData/basic/common/SuperMembers4.kt

@@ -0,0 +1,17 @@
+open class B {
+    open fun foo() {}
+    open fun bar() {}
+}
+
+class C : B() {
+    override fun foo() {
+        super.<caret>
+    }
+}
+
+// EXIST: { lookupString: "foo", itemText: "foo", tailText: "()", typeText: "Unit", attributes: "bold" }
+// EXIST: { lookupString: "bar", itemText: "bar", tailText: "()", typeText: "Unit", attributes: "bold" }
+// EXIST: equals
+// EXIST: hashCode
+// EXIST: toString
+// NOTHING_ELSE