syntax: fix fallout from using ptr::P.

1 files changed, 3 insertions, 4 deletions

diff --git a/src/libsyntax/ext/concat_idents.rs b/src/libsyntax/ext/concat_idents.rs
index 0ac26a3a904..145412caa0b 100644
--- a/src/libsyntax/ext/concat_idents.rs
+++ b/src/libsyntax/ext/concat_idents.rs
@@ -15,8 +15,7 @@ use ext::base;
 use owned_slice::OwnedSlice;
 use parse::token;
 use parse::token::{str_to_ident};
-
-use std::gc::GC;
+use ptr::P;
 
 pub fn expand_syntax_ext<'cx>(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
                               -> Box<base::MacResult+'cx> {
@@ -44,7 +43,7 @@ pub fn expand_syntax_ext<'cx>(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree]
     }
     let res = str_to_ident(res_str.as_slice());
 
-    let e = box(GC) ast::Expr {
+    let e = P(ast::Expr {
         id: ast::DUMMY_NODE_ID,
         node: ast::ExprPath(
             ast::Path {
@@ -60,6 +59,6 @@ pub fn expand_syntax_ext<'cx>(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree]
             }
         ),
         span: sp,
-    };
+    });
     MacExpr::new(e)
 }