Cleanup feature gates.

Author: cjgillot

compiler/rustc_interface/src/passes.rs

@@ -924,6 +924,11 @@ fn analysis(tcx: TyCtxt<'_>, (): ()) -> Result<()> {
                     tcx.ensure().check_mod_const_bodies(module);
                 });
             },
+            {
+                sess.time("unused_lib_feature_checking", || {
+                    rustc_passes::stability::check_unused_or_stable_features(tcx)
+                });
+            },
             {
                 // We force these querie to run,
                 // since they might not otherwise get called.
@@ -1002,11 +1007,6 @@ fn analysis(tcx: TyCtxt<'_>, (): ()) -> Result<()> {
                         tcx.hir()
                             .par_for_each_module(|module| tcx.ensure().check_mod_deathness(module));
                     },
-                    {
-                        sess.time("unused_lib_feature_checking", || {
-                            rustc_passes::stability::check_unused_or_stable_features(tcx)
-                        });
-                    },
                     {
                         sess.time("lint_checking", || {
                             rustc_lint::check_crate(tcx, || {

src/test/ui/alloc-error/alloc-error-handler-bad-signature-1.rs

@@ -1,6 +1,6 @@
 // compile-flags:-C panic=abort
 
-#![feature(alloc_error_handler, panic_handler)]
+#![feature(alloc_error_handler)]
 #![no_std]
 #![no_main]