Fixing compilation of mli documentation.
Fixing compilation of mli documentation.

Using dummy comment to @raise to please ocamldoc. Please change MS or
PMP, if needed.

amintimany/coq,SkySkimmer/coq,mattam82/coq,ppedrot/coq,JasonGross/coq,letouzey/coq-wip,Lionel-Rieg/coq,gares/coq,coq/coq,ppedrot/coq,maximedenes/coq,maximedenes/coq,Zimmi48/coq,maximedenes/coq,coq/coq,silene/coq,silene/coq,Zimmi48/coq,ppedrot/coq,herbelin/github-coq,ejgallego/coq,letouzey/coq-wip,herbelin/github-coq,Zimmi48/coq,JasonGross/coq,JasonGross/coq,coq/coq,maximedenes/coq,Ptival/coq,gares/coq,Matafou/coq,Lionel-Rieg/coq,Matafou/coq,ejgallego/coq,mattam82/coq,Matafou/coq,Lionel-Rieg/coq,william-lawvere/coq,ppedrot/coq,ejgallego/coq,letouzey/coq-wip,william-lawvere/coq,SkySkimmer/coq,ppedrot/coq,silene/coq,gares/coq,gares/coq,amintimany/coq,SkySkimmer/coq,JasonGross/coq,william-lawvere/coq,mattam82/coq,Zimmi48/coq,ejgallego/coq,Ptival/coq,amintimany/coq,maximedenes/coq,gares/coq,Ptival/coq,letouzey/coq-wip,coq/coq,herbelin/github-coq,letouzey/coq-wip,SkySkimmer/coq