Port Ssrecommon.gentac to the new API.
Port Ssrecommon.gentac to the new API.

Zimmi48/coq,Zimmi48/coq,Zimmi48/coq,coq/coq,coq/coq,SkySkimmer/coq,coq/coq,coq/coq,ejgallego/coq,ejgallego/coq,SkySkimmer/coq,SkySkimmer/coq,ejgallego/coq,SkySkimmer/coq,Zimmi48/coq,ejgallego/coq