librustc: Add a lint mode for unnecessary `copy` and remove a bunch of them.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libsyntax/ext/build.rs b/src/libsyntax/ext/build.rs
index 83fce24bef8..89290b78b72 100644
--- a/src/libsyntax/ext/build.rs
+++ b/src/libsyntax/ext/build.rs
@@ -347,7 +347,7 @@ impl AstBuilder for @ExtCtxt {
 
     fn strip_bounds(&self, generics: &Generics) -> Generics {
         let new_params = do generics.ty_params.map |ty_param| {
-            ast::TyParam { bounds: opt_vec::Empty, ..copy *ty_param }
+            ast::TyParam { bounds: opt_vec::Empty, ..*ty_param }
         };
         Generics {
             ty_params: new_params,
@@ -611,13 +611,13 @@ impl AstBuilder for @ExtCtxt {
     }
     fn lambda0(&self, _span: span, blk: ast::blk) -> @ast::expr {
         let ext_cx = *self;
-        let blk_e = self.expr(copy blk.span, ast::expr_block(copy blk));
+        let blk_e = self.expr(blk.span, ast::expr_block(copy blk));
         quote_expr!(|| $blk_e )
     }
 
     fn lambda1(&self, _span: span, blk: ast::blk, ident: ast::ident) -> @ast::expr {
         let ext_cx = *self;
-        let blk_e = self.expr(copy blk.span, ast::expr_block(copy blk));
+        let blk_e = self.expr(blk.span, ast::expr_block(copy blk));
         quote_expr!(|$ident| $blk_e )
     }