JS: support [suspend] fun main([args: Array<String>]) (KT-26628, KT-26572 fixed)

js/js.translator/testData/box/main/suspendMainThrows.kt

@@ -0,0 +1,30 @@
+// EXPECTED_REACHABLE_NODES: 1299
+// IGNORE_BACKEND: JS_IR
+// CALL_MAIN
+
+import kotlin.coroutines.*
+
+var callback: () -> Unit = {}
+
+val exception = Exception()
+
+suspend fun main() {
+
+    suspendCoroutine<Unit> { cont ->
+        callback = {
+            cont.resume(Unit)
+        }
+    }
+
+    throw exception
+}
+
+fun box(): String {
+    try {
+        callback()
+    } catch (e: Exception) {
+        assertTrue(e === exception)
+    }
+
+    return "OK"
+}