[v3] Move std::result_of to <type_traits>

[Paolo Carlini]

Hi,

consistently with n3090. Committed to mainline.

Paolo

//////////////////
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: CL
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20100517/3b39ffa9/attachment.ksh>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: patchlet
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20100517/3b39ffa9/attachment-0001.ksh>