From bdd360bb13bb4afad15a9ec7ea1594c22a8d359f Mon Sep 17 00:00:00 2001
From: klutzy <klutzytheklutzy@gmail.com>
Date: Thu, 17 Apr 2014 17:35:36 +0900
Subject: [PATCH] libsyntax: Workaround pprust `for` issue

---
 src/libsyntax/ext/expand.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index 84525718bd9..ccc9d73d544 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -156,7 +156,7 @@ pub fn expand_expr(e: @ast::Expr, fld: &mut MacroExpander) -> @ast::Expr {
             //     }
             //   }
 
-            let local_ident = token::gensym_ident("i");
+            let local_ident = token::gensym_ident("__i"); // FIXME #13573
             let next_ident = fld.cx.ident_of("next");
             let none_ident = fld.cx.ident_of("None");