feat(frontends/lean/elaborator): erase info annotations
feat(frontends/lean/elaborator): erase info annotations

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