From a563711b6a13eb93ac59d4de29e079281f4866f3 Mon Sep 17 00:00:00 2001
From: Eduard Burtescu <edy.burt@gmail.com>
Date: Tue, 5 Apr 2016 07:19:47 +0300
Subject: [PATCH] mir: print the scope and span for variables.

---
 src/librustc_mir/pretty.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/librustc_mir/pretty.rs b/src/librustc_mir/pretty.rs
index d0c66b340d9..e9c9edd1183 100644
--- a/src/librustc_mir/pretty.rs
+++ b/src/librustc_mir/pretty.rs
@@ -242,7 +242,11 @@ fn write_mir_intro(tcx: &TyCtxt, nid: NodeId, mir: &Mir, w: &mut Write)
         if var.mutability == Mutability::Mut {
             write!(w, "mut ")?;
         }
-        writeln!(w, "{:?}: {}; // {}", Lvalue::Var(i as u32), var.ty, var.name)?;
+        writeln!(w, "{:?}: {}; // {} in {}",
+                 Lvalue::Var(i as u32),
+                 var.ty,
+                 var.name,
+                 comment(tcx, var.scope, var.span))?;
     }
 
     // Compiler-introduced temporary types.