Add test

Author: sinkuu

src/test/compile-fail/const-match-check.rs

@@ -0,0 +1,44 @@
+// Copyright 2017 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.
+
+// revisions: matchck eval1 eval2
+
+#[cfg(matchck)]
+const X: i32 = { let 0 = 0; 0 };
+//[matchck]~^ ERROR refutable pattern in local binding
+
+#[cfg(matchck)]
+static Y: i32 = { let 0 = 0; 0 };
+//[matchck]~^ ERROR refutable pattern in local binding
+
+#[cfg(matchck)]
+trait Bar {
+    const X: i32 = { let 0 = 0; 0 };
+    //[matchck]~^ ERROR refutable pattern in local binding
+}
+
+#[cfg(matchck)]
+impl Bar for () {
+    const X: i32 = { let 0 = 0; 0 };
+    //[matchck]~^ ERROR refutable pattern in local binding
+}
+
+#[cfg(eval1)]
+enum Foo {
+    A = { let 0 = 0; 0 },
+    //[eval1]~^ ERROR refutable pattern in local binding
+}
+
+fn main() {
+    #[cfg(eval2)]
+    let x: [i32; { let 0 = 0; 0 }] = [];
+    //[eval2]~^ ERROR refutable pattern in local binding
+    //[eval2]~| ERROR constant evaluation error
+}