bug#66706: [PATCH] Automatic elisp dialect insertion

[Drew Adams]

> Assuming we don't want to flip the default for 'lexical-binding' just
> yet, would it be possible to warn the user any time they load
> interpreted code that uses dynamic binding?

I hope you don't really mean code that
uses dynamic binding.

I hope you just mean code defined with
`lexical-binding'=nil.  Such code can
perfectly well use dynamic binding.
And it will.  Always.