Re: [PATCH] dwarf.h: Remove non-existing DW_TAG_mutable_type.

[Mark Wielaard <mjw at redhat dot com>]

On Wed, 2014-06-18 at 11:48 -0700, Josh Stone wrote:
> On 06/18/2014 11:38 AM, Mark Wielaard wrote:
> > And a future version of DWARF might
> > use the number for a completely different purpose.
> 
> The issue you linked says this:
> 
>    Remove DW_TAG_mutable_type from Appendix A (Figure 17)
>    (Make sure not to reassign the number 0x3e to another tag.
>     Perhaps we should leave the table entry in there with
>     an "unused" marker in place of DW_TAG_mutable_type.
> 
> So it seems they intend to leave that number out forever.

They might and that might be a good thing. Although I don't know of any
producer that ever produced it since it was for a concept that didn't
really exist in any language. Note that the extra comments didn't end up
in the final spec. All that was officially done was remove the name. All
I am proposing is we do the same since the name should never have been
there in the first place. I'll add a comment instead saying the value is
reserved.

Cheers,

Mark