feat(library/init/meta): add error messages when constructing coinductive predicates
feat(library/init/meta): add error messages when constructing coinductive predicates

fpvandoorn/lean,johoelzl/lean,fpvandoorn/lean,dselsam/lean,dselsam/lean,digama0/lean,johoelzl/lean,johoelzl/lean,johoelzl/lean,leanprover-community/lean,Kha/lean,digama0/lean,avigad/lean,leodemoura/lean,digama0/lean,digama0/lean,leodemoura/lean,leanprover/lean,leodemoura/lean,leodemoura/lean,Kha/lean,Kha/lean,leanprover/lean,digama0/lean,leodemoura/lean,dselsam/lean,avigad/lean,Kha/lean,fpvandoorn/lean,leanprover-community/lean,fpvandoorn/lean,avigad/lean,digama0/lean,leanprover/lean,leanprover-community/lean,johoelzl/lean,johoelzl/lean,dselsam/lean,leanprover-community/lean,Kha/lean,avigad/lean,fpvandoorn/lean,leanprover/lean,dselsam/lean,leanprover/lean,avigad/lean,fpvandoorn/lean,leodemoura/lean,dselsam/lean,Kha/lean,leanprover-community/lean,leanprover-community/lean,avigad/lean,leanprover/lean