[gcc r14-7500] gccrs: libproc_macro: Change drop rust interface

[Arthur Cohen]

https://gcc.gnu.org/g:d2c9c8cf393b3646e6bd4e9d74b33fca31d38dfe

commit r14-7500-gd2c9c8cf393b3646e6bd4e9d74b33fca31d38dfe
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Tue Apr 11 13:53:13 2023 +0200

    gccrs: libproc_macro: Change drop rust interface
    
    Change rust interface on drop function to take a mut pointer instead.
    This will match the drop trait interface more closely.
    
    libgrust/ChangeLog:
    
            * libproc_macro/rust/bridge/ident.rs: Change drop
            function interface.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Diff:
---
 libgrust/libproc_macro/rust/bridge/ident.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libgrust/libproc_macro/rust/bridge/ident.rs b/libgrust/libproc_macro/rust/bridge/ident.rs
index dbfa649d923..04169a46fad 100644
--- a/libgrust/libproc_macro/rust/bridge/ident.rs
+++ b/libgrust/libproc_macro/rust/bridge/ident.rs
@@ -6,7 +6,7 @@ use std::fmt;
 extern "C" {
     fn Ident__new(string: *const c_uchar, len: u64) -> Ident;
     fn Ident__new_raw(string: *const c_uchar, len: u64) -> Ident;
-    fn Ident__drop(ident: *const Ident);
+    fn Ident__drop(ident: *mut Ident);
     fn Ident__clone(ident: *const Ident) -> Ident;
 }
 
@@ -38,7 +38,7 @@ impl Ident {
 
 impl Drop for Ident {
     fn drop(&mut self) {
-        unsafe { Ident__drop(self as *const Ident) }
+        unsafe { Ident__drop(self as *mut Ident) }
     }
 }