Added test on workers with invalid transfer attempt

backend.native/tests/build.gradle

@@ -502,6 +502,12 @@ task worker2(type: RunKonanTest) {
     source = "runtime/workers/worker2.kt"
 }
 
+task worker3(type: RunKonanTest) {
+    disabled = (project.testTarget == 'wasm32') // Workers need pthreads.
+    goldValue = "OK\n"
+    source = "runtime/workers/worker3.kt"
+}
+
 task superFunCall(type: RunKonanTest) {
     goldValue = "<fun:C><fun:C1>\n<fun:C><fun:C3>\n"
     source = "codegen/basics/superFunCall.kt"

backend.native/tests/runtime/workers/worker3.kt

@@ -0,0 +1,23 @@
+import konan.worker.*
+
+data class WorkerArgument(val intParam: Int, val stringParam: String)
+data class WorkerResult(val intResult: Int, val stringResult: String)
+
+fun main(args: Array<String>) {
+    val worker = startWorker()
+    val s = "zzz${args.size.toString()}"
+
+    val future = try {
+        worker.schedule(TransferMode.CHECKED,
+                { WorkerArgument(42, s) },
+                { input -> WorkerResult(input.intParam, input.stringParam + " result") }
+        )
+    } catch (e: IllegalStateException) {
+        null
+    }
+    if (future != null)
+        println("Fail 1")
+    if (s != "zzz0") println("Fail 2")
+    worker.requestTermination().consume { _ -> }
+    println("OK")
+}