[JS IR BE] Enum class lowering

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

@@ -1,6 +1,5 @@
 // !LANGUAGE: +NestedClassesInAnnotations
 // IGNORE_BACKEND: JVM_IR
-// IGNORE_BACKEND: JS_IR
 
 annotation class Foo(val kind: Kind) {
     enum class Kind { FAIL, OK }