fix(tests/util): use lean_assert_eq
fix(tests/util): use lean_assert_eq

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