Add option_declaration tests
Add option_declaration tests

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

soonhokong/lean-osx,johoelzl/lean,htzh/lean,fpvandoorn/lean2,UlrikBuchholtz/lean,soonhokong/lean,dselsam/lean,soonhokong/travis_test,leanprover-community/lean,fgdorais/lean,leodemoura/lean,UlrikBuchholtz/lean,digama0/lean,avigad/lean,leodemoura/lean,levnach/lean,soonhokong/lean-osx,digama0/lean,Kha/lean,eigengrau/lean,eigengrau/lean,leanprover-community/lean,sp3ctum/lean,soonhokong/lean,sp3ctum/lean,htzh/lean,sp3ctum/lean,UlrikBuchholtz/lean,rlewis1988/lean,leodemoura/lean,htzh/lean,javra/lean,javra/lean,Kha/lean,levnach/lean,leanprover-community/lean,fgdorais/lean,dselsam/lean,johoelzl/lean,digama0/lean,htzh/lean,levnach/lean,leanprover/lean,leanprover/lean,fpvandoorn/lean,fpvandoorn/lean2,eigengrau/lean,javra/lean,rlewis1988/lean,javra/lean,fpvandoorn/lean,UlrikBuchholtz/lean,soonhokong/travis_test,soonhokong/lean-windows,leanprover-community/lean,codyroux/lean0.1,avigad/lean,soonhokong/lean-windows,fpvandoorn/lean2,Kha/lean,soonhokong/lean-windows,johoelzl/lean,leanprover/lean,leanprover/lean,johoelzl/lean,avigad/lean,htzh/lean,soonhokong/lean-windows,dselsam/lean,digama0/lean,leodemoura/lean,c-cube/lean,soonhokong/lean-windows,rlewis1988/lean,sp3ctum/lean,digama0/lean,leanprover/lean,codyroux/lean0.1,fpvandoorn/lean2,rlewis1988/lean,johoelzl/lean,fgdorais/lean,eigengrau/lean,soonhokong/travis_test,fpvandoorn/lean,Kha/lean,c-cube/lean,fpvandoorn/lean,dselsam/lean,c-cube/lean,dselsam/lean,codyroux/lean0.1,soonhokong/lean-osx,levnach/lean,UlrikBuchholtz/lean,c-cube/lean,soonhokong/lean-osx,fgdorais/lean,Kha/lean,javra/lean,leanprover-community/lean,eigengrau/lean,fpvandoorn/lean2,soonhokong/lean,c-cube/lean,soonhokong/lean,rlewis1988/lean,leanprover/lean,leodemoura/lean,Kha/lean,levnach/lean,fgdorais/lean,avigad/lean,digama0/lean,fgdorais/lean,leanprover-community/lean,soonhokong/lean-osx,fpvandoorn/lean,soonhokong/travis_test,fpvandoorn/lean,rlewis1988/lean,soonhokong/lean,codyroux/lean0.1,avigad/lean,leodemoura/lean,sp3ctum/lean,dselsam/lean,avigad/lean,johoelzl/lean