feat: use hashbrown

src/ty/internal/mod.rs

@@ -1,6 +1,6 @@
 use std::cell::OnceCell;
 use std::cell::RefCell;
-use std::collections::HashSet;
+use hashbrown::HashSet;
 use std::hash::Hash;
 use std::rc::Rc;
 
@@ -219,11 +219,11 @@ impl<'vm> Value<'vm> {
         }
     }
 
-    pub fn eq(self, other: Self) -> Self {
+    pub fn eq(self, other: Self, vm: &'vm VM<'_>) -> Self {
         use Const::Bool;
         match (self, other) {
             (x @ Value::Catchable(_), _) | (_, x @ Value::Catchable(_)) => x,
-            (s, other) => VmConst(Bool(s == other)),
+            (s, other) => VmConst(Bool(s.eq_impl(&other, vm))),
         }
     }