Auto merge of #47017 - topecongiro:issue-33469, r=estebank

Do not panic on interpolated token inside quote macro

Closes #33469.

src/test/compile-fail/quote-with-interpolated.rs

@@ -0,0 +1,19 @@
+// 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.
+
+#![feature(quote)]
+fn main() {
+    macro_rules! foo {
+        ($bar:expr)  => {
+            quote_expr!(cx, $bar) //~ ERROR quote! with interpolated token
+        }
+    }
+    foo!(bar);
+}