[cfe-commits] patch: make UsingDirective derive from Decl, not NamedDecl

[Richard Smith]

On Fri, Oct 5, 2012 at 2:21 AM, Nick Lewycky <nicholas at mxc.ca> wrote:

> This patch changes UsingDirectives to be derived from Decl instead of
> NamedDecl, and consequently removes the CXXUsingDirective DeclarationName.
>
> The way using directives are stored with this patch is to have a single
> pointer on each UsingDirectiveDecl that points to the previous declaration,
> and a pointer on TranslationUnit and Namespace DeclContexts that point to
> the last one in that chain. We don't need such pointers on other
> DeclContexts because they either can't hold using-directives or the lookup
> will be handled by Scope.
>
> Please review!


This looks good to me. Have you tested the patch with chained PCH (or
modules)?
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