[commit/Ada] Add handling of "ptype TYPE_NAME.FIELD0.[...].FIELDN" expressions

[Eli Zaretskii]

> Date: Fri, 4 Jan 2008 07:13:40 -0800
> From: Joel Brobecker <brobecker@adacore.com>
> 
> The subject says it all. Before the patch, you could do:
> 
>    (gdb) ptype type_name
> 
> But if you wanted to get the type of one field inside that type,
> you would hit a limitation:
> 
>    (gdb) ptype circle.pos
>    Invalid attempt to select from type: "circle.pos".
> 
> The attached patch enhances the debugger to able to do the above.
> 
> 2008-01-04  Joel Brobecker  <brobecker@adacore.com>
> 
>         * ada-exp.y (chop_separator): New function.
>         (write_selectors): Rewrite to re-use chop_separator.
>         (ada_nget_field_index, get_symbol_field_type): New functions.
>         (write_var_or_type): Add support for "ptype TYPENAME.FIELD"
>         expressions.

Is this an Ada-only problem?  If not, why are we fixing it only for
Ada?