test(tests/lean/run): add unicode in identifiers test
test(tests/lean/run): add unicode in identifiers test

Signed-off-by: Leonardo de Moura <7610bae85f2b530654cc716772f1fe653373e892@microsoft.com>

rlewis1988/lean,fpvandoorn/lean2,c-cube/lean,fgdorais/lean,Kha/lean,fpvandoorn/lean,Kha/lean,fpvandoorn/lean2,eigengrau/lean,leodemoura/lean,fpvandoorn/lean2,avigad/lean,sp3ctum/lean,leodemoura/lean,javra/lean,levnach/lean,leanprover/lean,leanprover/lean,soonhokong/lean,soonhokong/lean,eigengrau/lean,digama0/lean,rlewis1988/lean,leanprover-community/lean,leanprover/lean,leodemoura/lean,johoelzl/lean,fpvandoorn/lean,rlewis1988/lean,leodemoura/lean,c-cube/lean,fpvandoorn/lean2,leanprover/lean,Kha/lean,c-cube/lean,fpvandoorn/lean,avigad/lean,fpvandoorn/lean,UlrikBuchholtz/lean,soonhokong/lean-windows,fpvandoorn/lean,fgdorais/lean,avigad/lean,c-cube/lean,soonhokong/lean-osx,soonhokong/lean-windows,Kha/lean,dselsam/lean,johoelzl/lean,johoelzl/lean,leodemoura/lean,johoelzl/lean,javra/lean,fpvandoorn/lean,soonhokong/lean-osx,sp3ctum/lean,levnach/lean,javra/lean,dselsam/lean,htzh/lean,fgdorais/lean,htzh/lean,fgdorais/lean,avigad/lean,avigad/lean,digama0/lean,soonhokong/lean-osx,leanprover-community/lean,fgdorais/lean,UlrikBuchholtz/lean,soonhokong/lean,soonhokong/lean-windows,dselsam/lean,dselsam/lean,leanprover-community/lean,UlrikBuchholtz/lean,rlewis1988/lean,levnach/lean,leanprover-community/lean,UlrikBuchholtz/lean,johoelzl/lean,htzh/lean,leanprover-community/lean,htzh/lean,soonhokong/lean-osx,avigad/lean,fgdorais/lean,levnach/lean,leanprover-community/lean,soonhokong/lean,sp3ctum/lean,dselsam/lean,c-cube/lean,levnach/lean,digama0/lean,javra/lean,soonhokong/lean-windows,sp3ctum/lean,eigengrau/lean,htzh/lean,dselsam/lean,sp3ctum/lean,digama0/lean,Kha/lean,Kha/lean,johoelzl/lean,leodemoura/lean,eigengrau/lean,soonhokong/lean,digama0/lean,soonhokong/lean-windows,rlewis1988/lean,javra/lean,leanprover/lean,UlrikBuchholtz/lean,fpvandoorn/lean2,digama0/lean,rlewis1988/lean,eigengrau/lean,soonhokong/lean-osx,leanprover/lean