Correct subtyping check for constructors
Correct subtyping check for constructors

JasonGross/coq,amintimany/coq,amintimany/coq,SkySkimmer/coq,JasonGross/coq,ppedrot/coq,SkySkimmer/coq,william-lawvere/coq,ejgallego/coq,gares/coq,JasonGross/coq,ppedrot/coq,amintimany/coq,coq/coq,maximedenes/coq,coq/coq,silene/coq,Matafou/coq,Matafou/coq,ppedrot/coq,maximedenes/coq,gares/coq,letouzey/coq-wip,william-lawvere/coq,gares/coq,gares/coq,Zimmi48/coq,coq/coq,silene/coq,ejgallego/coq,SkySkimmer/coq,gares/coq,Zimmi48/coq,letouzey/coq-wip,maximedenes/coq,maximedenes/coq,letouzey/coq-wip,ppedrot/coq,letouzey/coq-wip,Zimmi48/coq,coq/coq,Zimmi48/coq,ppedrot/coq,maximedenes/coq,Matafou/coq,letouzey/coq-wip,ejgallego/coq,william-lawvere/coq,silene/coq,SkySkimmer/coq,JasonGross/coq,ejgallego/coq