change depend::Expr::Conditional to ConditionalGroup

src/depend/mod.rs

@@ -11,8 +11,8 @@ pub enum Conditional {
 #[derive(Clone, Debug)]
 pub enum Expr {
     Atom(Atom),
-    Conditional(Conditional),
     AllOf(Vec<Expr>),
     AnyOf(Vec<Expr>),
     OneOf(Vec<Expr>),
+    ConditionalGroup(Conditional, Vec<Expr>),
 }