Minor. Add more tests

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

@@ -0,0 +1,45 @@
+// WITH_STDLIB
+// WORKS_WHEN_VALUE_CLASS
+// LANGUAGE: +ValueClasses, +GenericInlineClassParameter
+
+OPTIONAL_JVM_INLINE_ANNOTATION
+value class Foo<T: Int>(val value: T)
+
+fun <T> id(x: T): T = x
+inline fun <T> inlinedId(x: T): T = x
+
+fun <T> T.idExtension(): T = this
+inline fun <T> T.inlinedIdExtension(): T = this
+
+fun <T: Int> test(f: Foo<T>) {
+    inlinedId(f) // box
+    inlinedId(f).idExtension() // box
+
+    f.inlinedIdExtension() // box
+
+    val a = inlinedId(f).idExtension() // box unbox
+    val b = inlinedId(f).inlinedIdExtension() // box unbox
+}
+
+fun box(): String {
+    val f = Foo(11)
+
+    id(inlinedId(f))
+    inlinedId(id(f))
+
+    inlinedId(f) // box
+    inlinedId(f).idExtension() // box
+
+    f.inlinedIdExtension() // box
+
+    val a = inlinedId(f).idExtension() // box unbox
+    val b = inlinedId(f).inlinedIdExtension() // box unbox
+
+    if (a.value != 11) return "fail 1"
+    if (b.value != 11) return "fail 2"
+
+    if (inlinedId(Foo(10)).value != 10) return "fail 3"
+    if (Foo(20).inlinedIdExtension().value != 20) return "fail 4"
+
+    return "OK"
+}