adjust UsingTest to compile on 2.11

Author: SethTisue

compat/src/test/scala/scala/util/UsingTest.scala

@@ -117,7 +117,7 @@ class UsingTest {
     def check[UseT <: Throwable: ClassTag](
       t: String => UseT,
       behavior: ThrowBehavior,
-      allowsSuppression: Boolean,
+      allowsSuppression: Boolean
     ): Unit = {
       val ex = useWrapped(resource, t)
       if (behavior == UseIsThrown) {
@@ -211,7 +211,7 @@ class UsingTest {
     def check[UseT <: Throwable: ClassTag](
       t: String => UseT,
       behavior: ThrowBehavior,
-      allowsSuppression: Boolean,
+      allowsSuppression: Boolean
     ): Unit = {
       val ex = useManager(resource, t)
       if (behavior == UseIsThrown) {
@@ -616,7 +616,7 @@ class UsingTest {
     val group = new ResourceGroup
     val res = Using.resources(
       group.newResource(),
-      group.newResource(),
+      group.newResource()
     ) { (r1, r2) =>
       r1.identity(1) + r2.identity(1)
     }
@@ -630,7 +630,7 @@ class UsingTest {
     val res = Using.resources(
       group.newResource(),
       group.newResource(),
-      group.newResource(),
+      group.newResource()
     ) { (r1, r2, r3) =>
       r1.identity(1) +
       r2.identity(1) +
@@ -647,7 +647,7 @@ class UsingTest {
       group.newResource(),
       group.newResource(),
       group.newResource(),
-      group.newResource(),
+      group.newResource()
     ) { (r1, r2, r3, r4) =>
       r1.identity(1) +
       r2.identity(1) +
@@ -751,8 +751,8 @@ object UsingTest {
   final class UsingLinkageError(message: String) extends LinkageError(message)
   type ClosingInterruption = InterruptedException
   type UsingInterruption = ThreadDeath
-  final class ClosingControl(message: String) extends ControlThrowable(message)
-  final class UsingControl(message: String) extends ControlThrowable(message)
+  final class ClosingControl(message: String) extends ControlThrowable
+  final class UsingControl(message: String) extends ControlThrowable
   final class ClosingError(message: String) extends Error(message)
   final class UsingError(message: String) extends Error(message)
   final class ClosingException(message: String) extends Exception(message)