lhIdToElements.entries is not a function or its return value is not iterable

[paulirish]

I was looking at our sentry to see if there's anything good in there and this came up. And there's a clean repro!

lighthouse https://www.autodesk.com/site-selector

window.Map is overwritten on the site and the ~polyfill is clearly broken.

This certainly is related to our #13646 and #14003 items. We do this resolveNodes dance in both isolated and unisolated contexts.. so.. we might need to use our old __nativeMap pattern until we don't do any noderesolving in the uninsolated spot.