Add tests to check collection literals with varargs

compiler/testData/codegen/box/collectionLiterals/collectionLiteralsWithVarargs.kt

@@ -0,0 +1,42 @@
+// WITH_REFLECT
+
+// IGNORE_BACKEND: JS
+
+import java.util.Arrays
+import kotlin.reflect.KClass
+import kotlin.reflect.KFunction0
+
+inline fun <reified T> test(kFunction: KFunction0<Unit>, test: T.() -> Unit) {
+    val annotation = kFunction.annotations.single() as T
+    annotation.test()
+}
+
+fun check(b: Boolean, message: String) {
+    if (!b) throw RuntimeException(message)
+}
+
+@Suppress("UNSUPPORTED_FEATURE")
+annotation class Foo(vararg val a: String = ["a", "b"])
+
+@Suppress("UNSUPPORTED_FEATURE")
+annotation class Bar(vararg val a: KClass<*> = [Int::class])
+
+@Suppress("UNSUPPORTED_FEATURE")
+@Foo(*["/"])
+fun test1() {}
+
+@Suppress("UNSUPPORTED_FEATURE")
+@Bar(*[Long::class, String::class])
+fun test2() {}
+
+fun box(): String {
+    test<Foo>(::test1) {
+        check(a.contentEquals(arrayOf("/")), "Fail 1: ${a.joinToString()}")
+    }
+
+    test<Bar>(::test2) {
+        check(a.contentEquals(arrayOf(Long::class, String::class)), "Fail 2: ${a.joinToString()}")
+    }
+
+    return "OK"
+}