valtree interning stuff

Author: BoxyUwU

compiler/rustc_middle/src/ty/structural_impls.rs

@@ -713,22 +713,18 @@ impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for ty::ValTree<'tcx> {
         let new_inner = inner.clone().try_fold_with(folder)?;
 
         if inner == &new_inner {
-            return Ok(self);
+            Ok(self)
+        } else {
+            let valtree = folder.cx().intern_valtree(new_inner);
+            Ok(valtree)
         }
-
-        let valtree = folder.cx().intern_valtree(new_inner);
-        Ok(valtree)
     }
 
     fn fold_with<F: TypeFolder<TyCtxt<'tcx>>>(self, folder: &mut F) -> Self {
         let inner: &ty::ValTreeKind<TyCtxt<'tcx>> = &*self;
         let new_inner = inner.clone().fold_with(folder);
 
-        if inner == &new_inner {
-            return self;
-        }
-
-        folder.cx().intern_valtree(new_inner)
+        if inner == &new_inner { self } else { folder.cx().intern_valtree(new_inner) }
     }
 }