Get low-level ops compiling

compiler/module/src/low_level.rs

@@ -1,9 +1,10 @@
-use crate::symbol::Symbol;
-
 /// Low-level operations that get translated directly into e.g. LLVM instructions.
 /// These are always wrapped when exposed to end users, and can only make it
 /// into an Expr when added directly by can::builtins
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
 pub enum LowLevel {
-    ListLen { arg: Symbol },
+    /// List.len
+    ListLen,
+    Eq,
+    NotEq,
 }