Hide some lints which are not quite right the way they are reported to the user

src/test/ui/const-eval/const_prop_errors.rs

@@ -0,0 +1,24 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// compile-pass
+
+pub trait Foo {
+    fn foo(self) -> u32;
+}
+
+impl<T> Foo for T {
+    fn foo(self) -> u32 {
+        fn bar<T>() { loop {} }
+        bar::<T> as u32
+    }
+}
+
+fn main() {}