unknown unstable lint command line

fix ##113702

fix #113702

unknown unstable lint command lint

improve impelementation

compiler/rustc_hir_analysis/src/check/mod.rs

@@ -289,6 +289,7 @@ fn default_body_is_unstable(
         &tcx.sess.parse_sess,
         feature,
         rustc_feature::GateIssue::Library(issue),
+        false,
     );
 
     err.emit();