Changes on code review

compiler/testData/diagnostics/tests/j+k/canDeclareIfSamAdapterIsInherited.kt

@@ -0,0 +1,11 @@
+// FILE: Super.java
+class Super {
+    void foo(Runnable r) {
+    }
+}
+
+// FILE: Sub.kt
+class Sub() : Super() {
+    fun foo(<!UNUSED_PARAMETER!>r<!> : (() -> Unit)?) {
+    }
+}