subtypes of collections like Map cause errors

[unbyte]

Version

3.0.0-rc.5

Reproduction link

https://codepen.io/unbyte/pen/PoNNava

Steps to reproduce

1. open console

What is expected?

no error

What is actually happening?

errors like Uncaught TypeError: Method Map.prototype.set called on incompatible receiver [object Object]

---

see #1864