Merge boxWithStdlib testData into box, delete BoxWithStdlib test

compiler/testData/codegen/box/annotations/annotatedObjectLiteral.kt

@@ -0,0 +1,16 @@
+// WITH_RUNTIME
+
+annotation class Ann(val v: String = "???")
+@Ann open class My
+fun box(): String {
+    val v = @Ann("OK") object: My() {}
+    val klass = v.javaClass
+
+    val annotations = klass.annotations.toList()
+    // Ann, kotlin.Metadata
+    if (annotations.size != 2) return "Fail annotations size is ${annotations.size}: $annotations"
+    val annotation = annotations.filterIsInstance<Ann>().firstOrNull()
+                     ?: return "Fail no @Ann: $annotations"
+
+    return annotation.v
+}