Fix caching of local hintdb in typeclasses eauto.
Fix caching of local hintdb in typeclasses eauto.

herbelin/github-coq,mattam82/coq,gmalecha/coq,amintimany/coq,coq/coq,SkySkimmer/coq,gares/coq,letouzey/coq-wip,8l/coq,Zimmi48/coq,letouzey/coq-wip,SkySkimmer/coq,silene/coq,letouzey/coq-wip,8l/coq,TOSPIO/coq,SkySkimmer/coq,maximedenes/coq,amintimany/coq,Matafou/coq,herbelin/github-coq,TheTypoMaster/coq,jpdeplaix/coq,mlasson/coq,Zimmi48/coq,herbelin/github-coq,maximedenes/coq,mlasson/coq,Zimmi48/coq,Lionel-Rieg/coq,JasonGross/coq,Zimmi48/coq,JasonGross/coq,Ptival/coq,maximedenes/coq,Lionel-Rieg/coq,jpdeplaix/coq,gares/coq,barras/coq,william-lawvere/coq,JasonGross/coq,gmalecha/coq,silene/coq,mattam82/coq,william-lawvere/coq,ppedrot/coq,ppedrot/coq,Ptival/coq,TheTypoMaster/coq,maximedenes/coq,ejgallego/coq,mlasson/coq,ppedrot/coq,ale-f/coq,barras/coq,asr/coq,TOSPIO/coq,JasonGross/coq,barras/coq,ejgallego/coq,gares/coq,mattam82/coq,jpdeplaix/coq,asr/coq,letouzey/coq-wip,ppedrot/coq,coq/coq,ejgallego/coq,silene/coq,Matafou/coq,coq/coq,Matafou/coq,ejgallego/coq,gares/coq,Ptival/coq,william-lawvere/coq,TOSPIO/coq,8l/coq,gmalecha/coq,coq/coq,TheTypoMaster/coq,ale-f/coq,maximedenes/coq,Lionel-Rieg/coq,gares/coq,ale-f/coq,ppedrot/coq,asr/coq,amintimany/coq,SkySkimmer/coq,letouzey/coq-wip