refactor with

fix-ir/src/lib.rs

@@ -93,7 +93,6 @@ pub enum MaybeThunk {
     Builtins,
     ReplBinding(StringId),
     ScopedImportBinding(StringId),
-    WithLookup(StringId),
 }
 
 pub trait Ref<'ir> {
@@ -182,12 +181,10 @@ pub enum Ir<'ir, R: RefExt<'ir> + ?Sized + 'ir> {
         span: TextRange,
     },
 
-    With {
-        namespace: R::MaybeThunkRef,
-        body: R::IrRef,
-        thunks: Vec<'ir, (ThunkId, R::IrRef)>,
+    WithLookup {
+        sym: StringId,
+        namespaces: Vec<'ir, R::MaybeThunkRef>,
     },
-    WithLookup(StringId),
 
     // Function related
     Func {