message: js: Extend decoder error message to mention error code
  This can be useful to understand why the error happens.
diff: @@ -43,7 +43,7 @@ var MeshoptDecoder = (function() {
  var res = fun(tp, count, size, sp, source.length);
  target.set(heap.subarray(tp, tp + count * size), 0);
  sbrk(tp - sbrk(0));
  - if (res != 0) throw new Error("Malformed buffer data");
  + if (res != 0) throw new Error("Malformed buffer data: " + res);
  };
  return {
  