Fixed package directive in CommonPoolTest
diff --git a/core/kotlinx-coroutines-core/test/CommonPoolTest.kt b/core/kotlinx-coroutines-core/test/CommonPoolTest.kt
index 00fdaa1..a9985f5 100644
--- a/core/kotlinx-coroutines-core/test/CommonPoolTest.kt
+++ b/core/kotlinx-coroutines-core/test/CommonPoolTest.kt
@@ -2,7 +2,8 @@
  * Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
 
-import kotlinx.coroutines.experimental.*
+package kotlinx.coroutines.experimental
+
 import org.junit.*
 import org.junit.Assert.*
 import java.lang.reflect.*