feat(library/class_instance_resolution): more liberal type class resolution procedure
feat(library/class_instance_resolution): more liberal type class resolution procedure

This modification is needed for the group_theory folder

javra/lean,fpvandoorn/lean2,leodemoura/lean,Kha/lean,fpvandoorn/lean2,leodemoura/lean,javra/lean,digama0/lean,avigad/lean,Kha/lean,UlrikBuchholtz/lean,avigad/lean,soonhokong/lean-osx,leanprover-community/lean,avigad/lean,johoelzl/lean,dselsam/lean,johoelzl/lean,fpvandoorn/lean2,soonhokong/lean-windows,Kha/lean,Kha/lean,soonhokong/lean,levnach/lean,fgdorais/lean,leanprover/lean,digama0/lean,Kha/lean,leodemoura/lean,rlewis1988/lean,avigad/lean,soonhokong/lean,dselsam/lean,leanprover-community/lean,dselsam/lean,fpvandoorn/lean2,UlrikBuchholtz/lean,dselsam/lean,leanprover/lean,digama0/lean,fpvandoorn/lean,leanprover/lean,leodemoura/lean,fgdorais/lean,fpvandoorn/lean,leanprover-community/lean,leanprover/lean,johoelzl/lean,fpvandoorn/lean,leodemoura/lean,digama0/lean,fpvandoorn/lean,soonhokong/lean-osx,levnach/lean,fpvandoorn/lean,soonhokong/lean-osx,leanprover-community/lean,johoelzl/lean,leanprover-community/lean,fgdorais/lean,leanprover/lean,rlewis1988/lean,soonhokong/lean,dselsam/lean,johoelzl/lean,UlrikBuchholtz/lean,fgdorais/lean,soonhokong/lean-windows,digama0/lean,javra/lean,soonhokong/lean,levnach/lean,avigad/lean,javra/lean,leanprover/lean,UlrikBuchholtz/lean,fpvandoorn/lean,soonhokong/lean-windows,leanprover-community/lean,johoelzl/lean,soonhokong/lean-osx,Kha/lean,rlewis1988/lean,soonhokong/lean-osx,fpvandoorn/lean2,javra/lean,rlewis1988/lean,levnach/lean,UlrikBuchholtz/lean,levnach/lean,leodemoura/lean,dselsam/lean,fgdorais/lean,soonhokong/lean,fgdorais/lean,soonhokong/lean-windows,rlewis1988/lean,rlewis1988/lean,avigad/lean,soonhokong/lean-windows,digama0/lean