Minor. Add more tests

compiler/testData/codegen/box/inlineClasses/kt27096_functionalGeneric.kt

@@ -0,0 +1,32 @@
+// WITH_STDLIB
+// WORKS_WHEN_VALUE_CLASS
+// LANGUAGE: +ValueClasses, +GenericInlineClassParameter
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class Z1<T: () -> String>(val x: T)
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class Z2<T: Z1<() -> String>>(val z: T)
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class ZN<T: Z1<() -> String>?>(val z: T)
+
+fun wrap1(x: String): Z1<() -> String>? = if (x.length == 0) null else Z1({ x })
+fun wrap2(x: String): Z2<Z1<() -> String>>? = if (x.length == 0) null else Z2(Z1({ x }))
+fun wrapN(x: String): ZN<Z1<() -> String>?>? = if (x.length == 0) null else ZN(Z1({ x }))
+
+fun box(): String {
+    if (wrap1("") != null) throw AssertionError()
+    if (wrap1("a") == null) throw AssertionError()
+    if (wrap1("a")!!.x() != "a") throw AssertionError()
+
+    if (wrap2("") != null) throw AssertionError()
+    if (wrap2("a") == null) throw AssertionError()
+    if (wrap2("a")!!.z.x() != "a") throw AssertionError()
+
+    if (wrapN("") != null) throw AssertionError()
+    if (wrapN("a") == null) throw AssertionError()
+    if (wrapN("a")!!.z!!.x() != "a") throw AssertionError()
+
+    return "OK"
+}