Properly map super calls in typeMapper

compiler/testData/codegen/java8/box/jvm8/superCall.kt

@@ -0,0 +1,24 @@
+// JVM_TARGET: 1.8
+
+
+interface Test {
+    fun test(): String {
+        return "OK"
+    }
+}
+
+interface Test2 : Test {
+    override fun test(): String {
+        return super.test()
+    }
+}
+
+
+class TestClass : Test2 {
+
+}
+
+
+fun box(): String {
+    return TestClass().test()
+}