[gcc r15-8150] gccrs: Fix generic parameter parsing

[Arthur Cohen via Gcc-cvs]

https://gcc.gnu.org/g:f092edae96511e92b9d458184b23848f95138ab2

commit r15-8150-gf092edae96511e92b9d458184b23848f95138ab2
Author: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>
Date:   Mon May 20 11:02:53 2024 +0200

    gccrs: Fix generic parameter parsing
    
    Generic parameter parsing failed when an outer attribute was used on it.
    
    gcc/rust/ChangeLog:
    
            * parse/rust-parse-impl.h (Parser::parse_generic_param): Change 
token
            reference to be the last token after all outer attributes have been
            parsed.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.pa...@embecosm.com>

Diff:
---
 gcc/rust/parse/rust-parse-impl.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index d1f5b6bbf0a4..2c6b3d80cb25 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -3093,9 +3093,9 @@ template <typename EndTokenPred>
 std::unique_ptr<AST::GenericParam>
 Parser<ManagedTokenSource>::parse_generic_param (EndTokenPred is_end_token)
 {
-  auto token = lexer.peek_token ();
   auto outer_attrs = parse_outer_attribute ();
   std::unique_ptr<AST::GenericParam> param;
+  auto token = lexer.peek_token ();
 
   switch (token->get_id ())
     {