From 08ff7a80c06037d5fcdc0a4124c937c02d419d77 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adam=20Medzi=C5=84ski?= <adam.medzinski@gmail.com>
Date: Thu, 4 Aug 2016 16:24:39 +0200
Subject: [PATCH] Update error message E0178

---
 src/librustc_typeck/astconv.rs |  1 +
 src/test/compile-fail/E0178.rs | 16 ++++++++++++----
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/librustc_typeck/astconv.rs b/src/librustc_typeck/astconv.rs
index 3b2bca4ab3912..01aa0740c0e6b 100644
--- a/src/librustc_typeck/astconv.rs
+++ b/src/librustc_typeck/astconv.rs
@@ -1086,6 +1086,7 @@ impl<'o, 'gcx: 'tcx, 'tcx> AstConv<'gcx, 'tcx>+'o {
                                                "expected a path on the left-hand side \
                                                 of `+`, not `{}`",
                                                pprust::ty_to_string(ty));
+                err.span_label(ty.span, &format!("expected a path"));
                 let hi = bounds.iter().map(|x| match *x {
                     hir::TraitTyParamBound(ref tr, _) => tr.span.hi,
                     hir::RegionTyParamBound(ref r) => r.span.hi,
diff --git a/src/test/compile-fail/E0178.rs b/src/test/compile-fail/E0178.rs
index f34f3834e05b1..6527465e0b7f7 100644
--- a/src/test/compile-fail/E0178.rs
+++ b/src/test/compile-fail/E0178.rs
@@ -11,10 +11,18 @@
 trait Foo {}
 
 struct Bar<'a> {
-    w: &'a Foo + Copy, //~ ERROR E0178
-    x: &'a Foo + 'a, //~ ERROR E0178
-    y: &'a mut Foo + 'a, //~ ERROR E0178
-    z: fn() -> Foo + 'a, //~ ERROR E0178
+    w: &'a Foo + Copy,
+    //~^ ERROR E0178
+    //~| NOTE expected a path
+    x: &'a Foo + 'a,
+    //~^ ERROR E0178
+    //~| NOTE expected a path
+    y: &'a mut Foo + 'a,
+    //~^ ERROR E0178
+    //~| NOTE expected a path
+    z: fn() -> Foo + 'a,
+    //~^ ERROR E0178
+    //~| NOTE expected a path
 }
 
 fn main() {