[gcc r14-7450] gccrs: ast: Fix macros in tokenstreams

[Arthur Cohen]

https://gcc.gnu.org/g:efb24f60a818a8bec65a6204de9bb7f6866a4539

commit r14-7450-gefb24f60a818a8bec65a6204de9bb7f6866a4539
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Tue Apr 4 18:22:56 2023 +0200

    gccrs: ast: Fix macros in tokenstreams
    
    A default token was used as a separator, wich resulted in a wrong token
    stream.
    
    gcc/rust/ChangeLog:
    
            * ast/rust-ast-tokenstream.cc (TokenStream::visit): Remove
            default separator.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Diff:
---
 gcc/rust/ast/rust-ast-tokenstream.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gcc/rust/ast/rust-ast-tokenstream.cc b/gcc/rust/ast/rust-ast-tokenstream.cc
index 42609535bce..2fc7c2b3039 100644
--- a/gcc/rust/ast/rust-ast-tokenstream.cc
+++ b/gcc/rust/ast/rust-ast-tokenstream.cc
@@ -2310,7 +2310,10 @@ TokenStream::visit (MacroMatcher &matcher)
 
   tokens.push_back (Rust::Token::make (delimiters.first, Location ()));
 
-  visit_items_joined_by_separator (matcher.get_matches (), {});
+  for (auto &item : matcher.get_matches ())
+    {
+      visit (item);
+    }
 
   tokens.push_back (Rust::Token::make (delimiters.second, Location ()));
 }