[cfe-dev] Extern ref from method defined outside its namespace

[Robinson, Paul]

> Within an out-of-line declaration, the enclosing namespace is the
> original namespace of the entity, not the lexical namespace.
>
> C++11 [namespace.def]p6:
>   The enclosing namespaces of a declaration are those namespaces in
>   which the declaration lexically appears, except for a redeclaration of a
>   namespace member outside its original namespace (e.g., a definition
>   as specified in 7.3.1.2). Such a redeclaration has the same enclosing
>   namespaces as the original declaration.
>
> John.

Okay, so the method definition actually does implicitly reopen the
namespace scope.  Thanks for pointing out where that's specified!
--paulr