[gcc r14-8041] gccrs: Add comma for expr delimiter to fix match arms

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

https://gcc.gnu.org/g:863431f5a0a7e208937ee471a6f0933df214cdd8

commit r14-8041-g863431f5a0a7e208937ee471a6f0933df214cdd8
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Wed Oct 11 14:31:25 2023 +0200

    gccrs: Add comma for expr delimiter to fix match arms
    
    Add a comma as an expr delimiter, this will allow correct parsing of
    match arm expressions.
    
    gcc/rust/ChangeLog:
    
            * parse/rust-parse-impl.h (Parser::parse_expr): Add comma delimiter.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@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 345ef0eeb6e..8c04a1af175 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -12086,7 +12086,7 @@ Parser<ManagedTokenSource>::parse_expr (int right_binding_power,
     {
       TokenId id = current_token->get_id ();
       if (id == SEMICOLON || id == RIGHT_PAREN || id == RIGHT_CURLY
-	  || id == RIGHT_SQUARE)
+	  || id == RIGHT_SQUARE || id == COMMA)
 	return nullptr;
     }