Reducing allocation in tclDISPATCHGEN, by doing a List.map at the same time
the argument list is consumed.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@17062 85f007b7-540e-0410-9357-904b9bb8a0f7
Preventing useless allocations in Reductionops.instance.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@17063 85f007b7-540e-0410-9357-904b9bb8a0f7