[PATCH][Hashtable 3/6] Fix noexcept qualifications

[Jonathan Wakely]

On 29/07/20 11:33 +0200, François Dumont via Libstdc++ wrote:
>I eventually committed the attached patch which consider all your 
>remarks and moreover put back the move constructor implementation 
>where it used to be (not inline). It limits the size of the patch.
>
>I also added comments on true_type/false_type new usages like you 
>advised on [Hashtable 0/6] thread.

Thanks!