Editorial: fix description of Environment Record GetBindingValue

[michaelficarra]

This was probably a copy/paste error from SetMutableBinding.

[github-actions]

The rendered spec preview for this PR is available as a single page at https://tc39.es/ecma262/pr/3814 and as multiple pages at https://tc39.es/ecma262/pr/3814/multipage .

[linusg]

Let's also get rid of the A property named N wording, that makes no sense here. (evidently copied from Object env records where it does make sense preceded by It attempts to set the value of the Environment Record's associated binding object's property whose name is N to the value V.)

[michaelficarra]

@linusg Well it's a Global Environment Record, so it is a property of the global object, right?

[linusg]

I would not call bindings in the global environment's [[DeclarativeRecord]] "properties", no.

[michaelficarra]

Then should we also change the description for SetMutableBinding which uses the same wording?

[linusg]

Yes - FWIW I'm fine with just s/property/binding/ if you think keeping that sentence makes sense overall.