fixme and ordering

Author: bend-n

compiler/rustc_lint_defs/src/builtin.rs

@@ -82,10 +82,10 @@ declare_lint_pass! {
         PROC_MACRO_DERIVE_RESOLUTION_FALLBACK,
         PTR_CAST_ADD_AUTO_TO_OBJECT,
         PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS,
-        REDUNDANT_TRANSMUTATION,
         PUB_USE_OF_PRIVATE_EXTERN_CRATE,
         REDUNDANT_IMPORTS,
         REDUNDANT_LIFETIMES,
+        REDUNDANT_TRANSMUTATION,
         REFINING_IMPL_TRAIT_INTERNAL,
         REFINING_IMPL_TRAIT_REACHABLE,
         RENAMED_AND_REMOVED_LINTS,

compiler/rustc_mir_transform/src/check_redundant_transmutes.rs

@@ -78,6 +78,7 @@ impl<'a, 'tcx> RedundantTransmutesChecker<'a, 'tcx> {
             // bool → (uNN ↔ iNN)
             Bool | Uint(..) | Int(..) => {
                 matches!(fn_sig.output().kind(), Int(..) | Uint(..)).then(|| {
+                    // FIXME: suggest `cast_unsigned`/ `cast_signed` when `integer_sign_cast` stabilizes
                     errors::RedundantTransmute {
                         sugg: format!("({arg}) as {}", fn_sig.output()),
                         help: None,