Add DWARFContext member and accessor to DWARFUnit

[David Blaikie]

Could we pass that by reference instead of pointer, perhaps? (I know
there's lots of pointers in the exsting codebase (here and elsewhere), but
there's at least some desire to move towards references where
practical/reasonable (essentially when rebinding and nullness are not
required))


On Wed, Sep 3, 2014 at 11:45 AM, Frédéric Riss <friss at apple.com> wrote:

> First preparatory patch of the dwarfdump work. No feature or functional
> change, just introduce a DWARFContext member in the DWARFUnit that will be
> used later to make cross-section accesses or to store global state like
> dumping options.
>
> Ok to go in?
>
>
>
>
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