[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/delegation/DelegationToJavaIface.fir.kt

@@ -0,0 +1,4 @@
+// JAVAC_EXPECTED_FILE
+class TestIface(r : Runnable) : Runnable by r {}
+
+class TestObject(o : Object) : Object by o {}