[WasmJs] Support catching JS exceptions

Fixed #KT-65660

libraries/stdlib/wasm/js/internal/ExceptionHelpers.kt

@@ -18,4 +18,8 @@ private fun throwJsError(message: String?, wasmTypeName: String?, stack: Externa
 
 internal fun throwAsJsException(t: Throwable): Nothing {
     throwJsError(t.message, getSimpleName(t.typeInfo), t.jsStack)
+}
+
+internal fun throwJsException(): Nothing {
+    throw JsException()
 }