Fix native

utest/src-native/utest/PlatformShims.scala

@@ -2,22 +2,15 @@ package utest
 
 // Taken from the implementation for JS
 
-import scala.concurrent.Future
+import scala.concurrent.{Await, Future}
+import concurrent.duration._
 import scala.scalanative.reflect.Reflect
 
 /**
  * Platform specific stuff that differs between JVM, JS and Native
  */
 object PlatformShims {
-  def await[T](f: Future[T]): T = {
-    scala.scalanative.runtime.loop()
-    f.value match {
-      case Some(v) => v.get
-      case None => throw new IllegalStateException(
-        "Test that returns Future must be run asynchronously in Scala Native, see TestTreeSeq::runAsync"
-      )
-    }
-  }
+  def await[T](f: Future[T]): T = Await.result(f, Duration.Inf)
 
   type EnableReflectiveInstantiation =
     scala.scalanative.reflect.annotation.EnableReflectiveInstantiation