make Expression Display using original string

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bliplib"
-version = "0.2.4"
+version = "0.2.5"
 edition = "2024"
 authors = ["Breval Ferrari <breval.ferrari@fish.golf>"]
 description = "The Bizarre Language for Intermodulation Programming (BLIP)"

src/compiler.rs

@@ -2,7 +2,7 @@ use std::{
     any::{Any, TypeId, type_name},
     collections::BTreeMap,
     f64,
-    fmt::Debug,
+    fmt::{Debug, Display},
     str::FromStr,
 };
 
@@ -289,6 +289,12 @@ impl FromStr for Expression {
     }
 }
 
+impl Display for Expression {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        Display::fmt(&self.from, f)
+    }
+}
+
 /// Compiler context which persists from one token to the other.
 #[derive(Debug, Clone, new)]
 #[cfg_attr(test, derive(PartialEq))]