From 345e38cc0582d2ad00c05e9307bfddef19c84e64 Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Thu, 1 Jan 2015 20:00:03 -0500
Subject: [PATCH] Replace the TODO with a FIXME.

---
 src/librustc/middle/ty.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustc/middle/ty.rs b/src/librustc/middle/ty.rs
index a83f03c2c16..edfbbaae97b 100644
--- a/src/librustc/middle/ty.rs
+++ b/src/librustc/middle/ty.rs
@@ -5719,7 +5719,7 @@ pub fn unboxed_closure_upvars<'tcx>(typer: &mc::Typer<'tcx>,
                                                 })
                                     }
                                     None => {
-                                        // TODO we should really return None here;
+                                        // FIXME(#16640) we should really return None here;
                                         // but that requires better inference integration,
                                         // for now gin up something.
                                         freevar_ty