TEST: throw keyword support.

backend.native/tests/build.gradle

@@ -380,9 +380,14 @@ task intrinsic(type: UnitKonanTest) {
 task link(type: LinkKonanTest) {
     source = "link/src/bar.kt"
     lib = "link/lib"
-} 
+}
 
 task for0(type: RunKonanTest) {
     goldValue = "2\n3\n4\n"
     source = "runtime/basic/for0.kt"
-}
+}
+
+task throw0(type: RunKonanTest) {
+    goldValue = "Done\n"
+    source = "runtime/basic/throw0.kt"
+}

backend.native/tests/runtime/basic/throw0.kt

@@ -0,0 +1,8 @@
+fun main(args : Array<String>) {
+    val cond = 1
+    if (cond == 2) throw RuntimeException()
+    if (cond == 3) throw NoSuchElementException("no such element")
+    if (cond == 4) throw Error("error happens")
+
+    println("Done")
+}