MPP: Temporary workaround so that snapshot Kotlin 1.2.30 can compile it

(now tests, too)

Author: elizarov

core/kotlinx-coroutines-core/src/test/kotlin/kotlinx/coroutines/experimental/TestBase.kt

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+// :todo: Remove after transition to Kotlin 1.2.30+
+@file:Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
+
 package kotlinx.coroutines.experimental
 
 import org.junit.After

js/kotlinx-coroutines-core-js/src/test/kotlin/kotlinx/coroutines/experimental/TestBase.kt

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+// :todo: Remove after transition to Kotlin 1.2.30+
+@file:Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
+
 package kotlinx.coroutines.experimental
 
 import kotlin.js.*