syntax: remove ObsoleteManaged{Type,Expr}.

src/libsyntax/parse/obsolete.rs

@@ -31,8 +31,6 @@ pub enum ObsoleteSyntax {
     ObsoleteOwnedPattern,
     ObsoleteOwnedVector,
     ObsoleteOwnedSelf,
-    ObsoleteManagedType,
-    ObsoleteManagedExpr,
     ObsoleteImportRenaming,
     ObsoleteSubsliceMatch,
     ObsoleteExternCrateRenaming,
@@ -77,14 +75,6 @@ fn obsolete(&mut self, sp: Span, kind: ObsoleteSyntax) {
                 "`~self` is no longer supported",
                 "write `self: Box<Self>` instead"
             ),
-            ObsoleteManagedType => (
-                "`@` notation for managed pointers",
-                "use `Gc<T>` in `std::gc` instead"
-            ),
-            ObsoleteManagedExpr => (
-                "`@` notation for a managed pointer allocation",
-                "use the `box(GC)` operator instead of `@`"
-            ),
             ObsoleteImportRenaming => (
                 "`use foo = bar` syntax",
                 "write `use bar as foo` instead"

src/libsyntax/parse/parser.rs

@@ -1449,12 +1449,6 @@ pub fn parse_ty(&mut self, plus_allowed: bool) -> P<Ty> {
                     t
                 }
             }
-        } else if self.token == token::AT {
-            // MANAGED POINTER
-            self.bump();
-            let span = self.last_span;
-            self.obsolete(span, ObsoleteManagedType);
-            TyUniq(self.parse_ty(plus_allowed))
         } else if self.token == token::TILDE {
             // OWNED POINTER
             self.bump();
@@ -2722,14 +2716,6 @@ pub fn parse_prefix_expr(&mut self) -> P<Expr> {
             hi = e.span.hi;
             ex = ExprAddrOf(m, e);
           }
-          token::AT => {
-            self.bump();
-            let span = self.last_span;
-            self.obsolete(span, ObsoleteManagedExpr);
-            let e = self.parse_prefix_expr();
-            hi = e.span.hi;
-            ex = self.mk_unary(UnUniq, e);
-          }
           token::TILDE => {
             self.bump();
             let last_span = self.last_span;