Replace deprecated @JsName annotation with @jsglobal

Author: gslowikowski

scalac-scoverage-runtime/js/src/main/scala/scalajssupport/RhinoFile.scala

@@ -1,11 +1,11 @@
 package scalajssupport
 
 import scala.scalajs.js
-import scala.scalajs.js.annotation.JSName
+import scala.scalajs.js.annotation.JSGlobal
 
 import js.Dynamic.{ global => g, newInstance => jsnew }
 
-@JSName("Packages.java.io.File")
+@JSGlobal("Packages.java.io.File")
 @js.native
 class NativeRhinoFile(path: String, child: String) extends js.Object {
   def this(path: String) = this("", path)