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

compiler/testData/diagnostics/tests/override/clashesOnInheritance/kt13355viaJava.fir.kt

@@ -0,0 +1,47 @@
+// FILE: K.kt
+abstract class ATest1 : TestNN.JNullVsNotNull()
+
+abstract class ATest2 : TestNN.JUnknownImpl(), TestNN.JNotNull
+
+abstract class ATest3 : TestNN.JUnknownVsNotNull()
+
+class CTest1 : TestNN.JNullVsNotNull()
+
+class CTest2 : TestNN.JUnknownImpl(), TestNN.JNotNull
+
+class CTest3 : TestNN.JUnknownVsNotNull()
+
+// FILE: TestNN.java
+import org.jetbrains.annotations.*;
+
+public class TestNN {
+    public interface JNull {
+        @Nullable Object foo();
+    }
+
+    public interface JNotNull {
+        @NotNull Object foo();
+    }
+
+    public static class JNullVsNotNull implements JNull, JNotNull {
+        public Object foo() {
+            return this;
+        }
+    }
+
+    public static class JNullBase {
+        @Nullable public Object foo() {
+            return null;
+        }
+    }
+
+    public static class JUnknownImpl extends JNullBase {
+        public Object foo() {
+            return this;
+        }
+    }
+
+    public static class JUnknownVsNotNull extends JUnknownImpl implements JNotNull {
+    }
+}
+