Added tests with SAM adapter overridden in Kotlin class.

compiler/testData/loadJava/javaAgainstKotlin/samAdapters/OverrideSamAdapterInKotlin/Sub.kt

@@ -0,0 +1,6 @@
+package test
+
+public class Sub: Super() {
+    override fun foo(r: (() -> Unit)?) {
+    }
+}

compiler/testData/loadJava/javaAgainstKotlin/samAdapters/OverrideSamAdapterInKotlin/Super.java

@@ -0,0 +1,5 @@
+package test;
+
+public class Super {
+    void foo(Runnable r);
+}