bug#54190: 29.0.50; [PATCH] Incorrect/missing documentation for some Eshell "$" syntaxes

[Jim Porter]

On 3/4/2022 5:35 AM, Stefan Monnier via Bug reports for GNU Emacs, the 
Swiss army knife of text editors wrote:
> This looks like a workaround rather than a fix.
> eshell-do-eval supposedly handles code that uses macros.  `lambda` is
> just one such macro (and a very simple one at that), so if the `lambda`
> macro is not properly handled, then most likely there are other macros
> which are similarly mishandled.

Agreed. This is just intended as a slightly cleaner workaround than the 
previous one, but it's not a true fix. I think a real fix would be 
significantly more complex (e.g. using generator.el), and that might be 
better to track in a separate bug.