Add `Mutability::{is_mut,is_not}`

1 files changed, 2 insertions, 2 deletions

diff --git a/compiler/rustc_save_analysis/src/sig.rs b/compiler/rustc_save_analysis/src/sig.rs
index 9fcba3e46f1..74048ff7da3 100644
--- a/compiler/rustc_save_analysis/src/sig.rs
+++ b/compiler/rustc_save_analysis/src/sig.rs
@@ -169,7 +169,7 @@ impl<'hir> Sig for hir::Ty<'hir> {
                 let mut prefix = "&".to_owned();
                 prefix.push_str(&lifetime.name.ident().to_string());
                 prefix.push(' ');
-                if let hir::Mutability::Mut = mt.mutbl {
+                if mt.mutbl.is_mut() {
                     prefix.push_str("mut ");
                 };
 
@@ -332,7 +332,7 @@ impl<'hir> Sig for hir::Item<'hir> {
         match self.kind {
             hir::ItemKind::Static(ref ty, m, ref body) => {
                 let mut text = "static ".to_owned();
-                if m == hir::Mutability::Mut {
+                if m.is_mut() {
                     text.push_str("mut ");
                 }
                 let name = self.ident.to_string();