Minor. Add more tests

compiler/testData/codegen/box/inlineClasses/equalityForBoxesOfNullableValuesOfInlineClassGeneric.kt

@@ -0,0 +1,53 @@
+// WITH_STDLIB
+// WORKS_WHEN_VALUE_CLASS
+// LANGUAGE: +ValueClasses, +GenericInlineClassParameter
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class X<T: String>(val x: T)
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class Y<T: Number>(val y: T)
+
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class NX<T: String?>(val x: T)
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class NY<T: Number?>(val y: T)
+
+fun testNotNull(x: X<String>?, y: Y<Number>?) {
+    val xs = listOf<Any?>(x)
+    val ys = listOf<Any?>(y)
+    if (!xs.contains(y)) throw AssertionError()
+    if (xs[0] != ys[0]) throw AssertionError()
+    if (xs[0] !== ys[0]) throw AssertionError()
+}
+
+fun testNullable(x: NX<String?>?, y: NY<Number?>?) {
+    val xs = listOf<Any?>(x)
+    val ys = listOf<Any?>(y)
+    if (xs.contains(y)) throw AssertionError()
+    if (xs[0] == ys[0]) throw AssertionError()
+    if (xs[0] === ys[0]) throw AssertionError()
+}
+
+fun testNullsAsNullable(x: NX<String?>?, y: NY<Number?>?) {
+    val xs = listOf<Any?>(x)
+    val ys = listOf<Any?>(y)
+    if (!xs.contains(y)) throw AssertionError()
+    if (xs[0] != ys[0]) throw AssertionError()
+    if (xs[0] !== ys[0]) throw AssertionError()
+}
+
+
+fun box(): String {
+    testNotNull(null, null)
+
+    testNullable(NX(null), NY(null))
+    testNullable(NX(null), null)
+    testNullable(null, NY(null))
+
+    testNullsAsNullable(null, null)
+
+    return "OK"
+}