Updated future-proofing test, removed outdated test, and added

run-pass test for some new functionality.

Author: pnkfelix

src/test/compile-fail/macro-input-future-proofing.rs

@@ -25,6 +25,8 @@ macro_rules! errors_everywhere {
     ($($ty:ty)* -) => (); //~ ERROR `$ty:ty` is followed by `-`
     ($($a:ty, $b:ty)* -) => (); //~ ERROR `$b:ty` is followed by `-`
     ($($ty:ty)-+) => (); //~ ERROR `$ty:ty` is followed by `-`, which is not allowed for `ty`
+    ( $($a:expr)* $($b:tt)* ) => { };
+    //~^ ERROR `$a:expr` is followed by `$b:tt`, which is not allowed for `expr` fragments
 }
 
 fn main() { }

src/test/compile-fail/macro-seq-followed-by-seq.rs

@@ -0,0 +1,26 @@
+// Copyright 2016 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.
+
+// Test of allowing two sequences repetitions in a row,
+// functionality added as byproduct of RFC amendment #1384
+//   https://github.com/rust-lang/rfcs/pull/1384
+
+// Old version of Rust would reject this macro definition, even though
+// there are no local ambiguities (the initial `banana` and `orange`
+// tokens are enough for the expander to distinguish which case is
+// intended).
+macro_rules! foo {
+    ( $(banana $a:ident)* $(orange $b:tt)* ) => { };
+}
+
+fn main() {
+    foo!( banana id1 banana id2
+          orange hi  orange (hello world) );
+}