[JS IR] Eager initialization of adapter for kotlin.test tests

js/js.translator/testData/box/kotlin.test/_common.kt

@@ -14,7 +14,10 @@ fun raise(name: String): Nothing {
     throw Exception(name)
 }
 
+// Adapter should be initialized eagerly
 @Suppress("INVISIBLE_MEMBER")
+@OptIn(kotlin.ExperimentalStdlibApi::class)
+@JsEagerInitialization
 private val underscore = kotlin.test.setAdapter(object : FrameworkAdapter {
     override fun suite(name: String, ignored: Boolean, suiteFn: () -> Unit) {
         sortingContext.suite(name, ignored) { suiteFn() }