Added tests on workers's bridges

backend.native/tests/runtime/workers/worker4.kt

@@ -0,0 +1,17 @@
+package runtime.workers.worker4
+
+import kotlin.test.*
+
+import konan.worker.*
+
+@Test fun runTest() {
+    val worker = startWorker()
+    val future = worker.schedule(TransferMode.CHECKED, { 41 }) {
+        input -> input + 1
+    }
+    future.consume {
+        result -> println("Got $result")
+    }
+    worker.requestTermination().consume { _ -> }
+    println("OK")
+}

backend.native/tests/runtime/workers/worker5.kt

@@ -0,0 +1,17 @@
+package runtime.workers.worker5
+
+import kotlin.test.*
+
+import konan.worker.*
+
+@Test fun runTest() {
+    val worker = startWorker()
+    val future = worker.schedule(TransferMode.CHECKED, { "zzz".shallowCopy() }) {
+        input -> input.length
+    }
+    future.consume {
+        result -> println("Got $result")
+    }
+    worker.requestTermination().consume { _ -> }
+    println("OK")
+}

backend.native/tests/runtime/workers/worker6.kt

@@ -0,0 +1,17 @@
+package runtime.workers.worker6
+
+import kotlin.test.*
+
+import konan.worker.*
+
+@Test fun runTest() {
+    val worker = startWorker()
+    val future = worker.schedule(TransferMode.CHECKED, { 42 }) {
+        input -> input.toString()
+    }
+    future.consume {
+        result -> println("Got $result")
+    }
+    worker.requestTermination().consume { _ -> }
+    println("OK")
+}

backend.native/tests/runtime/workers/worker7.kt

@@ -0,0 +1,17 @@
+package runtime.workers.worker7
+
+import kotlin.test.*
+
+import konan.worker.*
+
+@Test fun runTest() {
+    val worker = startWorker()
+    val future = worker.schedule(TransferMode.CHECKED, { "Input".shallowCopy() }) {
+        input -> println(input)
+    }
+    future.consume {
+        result -> println("Got $result")
+    }
+    worker.requestTermination().consume { _ -> }
+    println("OK")
+}