Improve illegal invocation error in the runtime

[jasnell]

An internal PR adding the v8 patch to the internal repo will also be necessary here. I want to make sure we are good with this approach, however, before opening that.

[jasnell]

Is there a world where we could link to relevant docs?

Sure. What link should that be?

[mikenomitch]

I just pushed this up as a draft - https://github.com/cloudflare/cloudflare-docs/pull/15541

Will wordsmith & clean up tomorrow. Link would be: https://developers.cloudflare.com/workers/errors/illegal-invocation

[irvinebroque]

@mikenomitch — think the link would need to be /workers/observability/errors/#illegal-invocation-errors

[jasnell]

Updated with the link to the new error documentation.