[patch] Simplify non-inline function definitions for std::unordered_xxx containers

[Jonathan Wakely]

On 03/12/14 12:00 +0000, Jonathan Wakely wrote:
>While working on PR57272 for unordered containers I was getting a
>headache reading all the return types with nested-name-qualifiers
>split over three or four lines.

More of the same.

Tested powerpc64-linux, committed to trunk.

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