Add some missing trait impls

Fixes `ConditionEqual` missing Clone Trait #349

Author: mwillsey

src/pattern.rs

@@ -62,7 +62,7 @@ use crate::*;
 /// ```
 ///
 /// [`FromStr`]: std::str::FromStr
-#[derive(Debug, PartialEq, Eq, Clone)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Pattern<L> {
     /// The actual pattern as a [`RecExpr`]
     pub ast: PatternAst<L>,

src/rewrite.rs

@@ -398,7 +398,7 @@ where
 ///
 /// [`apply_one`]: Applier::apply_one()
 /// [`check`]: Condition::check()
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct ConditionalApplier<C, A> {
     /// The [`Condition`] to [`check`] before calling [`apply_one`] on
     /// `applier`.
@@ -493,7 +493,7 @@ where
 /// This condition adds its two [`Pattern`] to the egraph and passes
 /// if and only if they are equivalent (in the same eclass).
 ///
-#[derive(Debug)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub struct ConditionEqual<L> {
     p1: Pattern<L>,
     p2: Pattern<L>,