[PATCH] Expand dynamic type documentation

[Eli Zaretskii]

> From: Tom Tromey <tromey@adacore.com>
> Date: Fri, 24 Apr 2020 14:39:11 -0600
> Cc: Tom Tromey <tromey@adacore.com>
> 
> This expands the Python dynamic type documentation, as suggested by
> Christian.
> 
> gdb/doc/ChangeLog
> 2020-04-24  Tom Tromey  <tromey@adacore.com>
> 
> 	* python.texi (Types In Python): Mention missing fields.  Add
> 	dynamic type example.

Fine with me, with one minor comment:

> +Here, at least conceptually (whether your compiler actually does this
> +is a separate issue), examining @code{gdb.lookup_symbol("array", ...).type}

This long @code{..} expression is likely to be split between lines; to
prevent that, I suggest to wrap it in @w{..}.

Thanks.