From 56847af9163284f928d5632a3d0d29399716414f Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Fri, 17 Mar 2017 09:51:31 -0400
Subject: port the match code to use `CoerceMany`

`match { }` now (correctly?) indicates divergence, which results in more
unreachable warnings. We also avoid fallback to `!` if there is just one
arm (see new test: `match-unresolved-one-arm.rs`).
---
 src/libsyntax/parse/obsolete.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libsyntax')

diff --git a/src/libsyntax/parse/obsolete.rs b/src/libsyntax/parse/obsolete.rs
index a46a788ca08..d5baec675e4 100644
--- a/src/libsyntax/parse/obsolete.rs
+++ b/src/libsyntax/parse/obsolete.rs
@@ -36,6 +36,7 @@ pub trait ParserObsoleteMethods {
 impl<'a> ParserObsoleteMethods for parser::Parser<'a> {
     /// Reports an obsolete syntax non-fatal error.
     #[allow(unused_variables)]
+    #[allow(unreachable_code)]
     fn obsolete(&mut self, sp: Span, kind: ObsoleteSyntax) {
         let (kind_str, desc, error) = match kind {
             // Nothing here at the moment
-- 
cgit 1.4.1-3-g733a5