feat(compiler/simp_inductive): add optimization for inductive datatypes that have only one constructor C, and C has only one relevant field
feat(compiler/simp_inductive): add optimization for inductive datatypes that have only one constructor C, and C has only one relevant field

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