test(tests/lean/run): add IO test
test(tests/lean/run): add IO test

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