[gcc r14-8112] gccrs: Add missing override specifier

[Arthur Cohen <cohenarthur@gcc.gnu.org>]

https://gcc.gnu.org/g:74ef5529c81fc3ad4bcb873ceba045f8142ddcfe

commit r14-8112-g74ef5529c81fc3ad4bcb873ceba045f8142ddcfe
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Thu Nov 2 18:10:32 2023 +0100

    gccrs: Add missing override specifier
    
    Some function lacked the override specifier, this made the compiler emit
    several warning.
    
    gcc/rust/ChangeLog:
    
            * ast/rust-ast.h: Add override specifier.
            * ast/rust-item.h: Likewise.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Diff:
---
 gcc/rust/ast/rust-ast.h  | 2 +-
 gcc/rust/ast/rust-item.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/rust/ast/rust-ast.h b/gcc/rust/ast/rust-ast.h
index 9f5242ae80d..75af2940c76 100644
--- a/gcc/rust/ast/rust-ast.h
+++ b/gcc/rust/ast/rust-ast.h
@@ -1495,7 +1495,7 @@ public:
   }
 
   NodeId get_node_id () const { return node_id; }
-  location_t get_locus () const { return locus; }
+  location_t get_locus () const override { return locus; }
 };
 
 /* Abstract base class for items used within an inherent impl block (the impl
diff --git a/gcc/rust/ast/rust-item.h b/gcc/rust/ast/rust-item.h
index eba86dca2fa..57059eb0672 100644
--- a/gcc/rust/ast/rust-item.h
+++ b/gcc/rust/ast/rust-item.h
@@ -3291,7 +3291,7 @@ public:
 
   std::string as_string () const override;
 
-  location_t get_locus () const { return locus; }
+  location_t get_locus () const override { return locus; }
 
   void accept_vis (ASTVisitor &vis) override;