Add blackbox test for definitely-not-null types

^KT-26245 Fixed

compiler/testData/codegen/box/notNullAssertions/definitelyNotNullTypes.kt

@@ -0,0 +1,31 @@
+// !LANGUAGE: +DefinitelyNotNullTypeParameters +ProhibitUsingNullableTypeParameterAgainstNotNullAnnotated
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND_FIR: JVM_IR
+
+// FILE: JClass.java
+
+import org.jetbrains.annotations.*;
+
+public abstract class JClass<T> {
+    public void foo(@NotNull T x) {}
+
+    public static void test(JClass<String> w) {
+        w.foo(null);
+    }
+}
+
+// FILE: main.kt
+class KDerived<E> : JClass<E>() {
+    override fun foo(e: E!!) {
+        throw RuntimeException("Should not be called")
+    }
+}
+
+fun box(): String {
+    try {
+        JClass.test(KDerived())
+    } catch (e: java.lang.NullPointerException) {
+        return "OK"
+    }
+    return "fail"
+}