isl_vec_copy: add memory management annotations
isl_vec_copy: add memory management annotations

This was missing from isl-0.09-130-g8d1920276c (add public isl_vec
interface, Tue Mar 20 16:32:13 2012 +0100).

Signed-off-by: Sven Verdoolaege <235c10dd23b819f81cdc9756a251746bc184cab6@gmail.com>

Meinersbur/isl,Meinersbur/isl,Meinersbur/isl,Meinersbur/isl