Add 'static mut' items to the language

src/libsyntax/ast.rs

@@ -190,7 +190,7 @@ pub enum def {
     def_self_ty(/* trait id */ node_id),
     def_mod(def_id),
     def_foreign_mod(def_id),
-    def_const(def_id),
+    def_static(def_id, bool /* is_mutbl */),
     def_arg(node_id, bool /* is_mutbl */),
     def_local(node_id, bool /* is_mutbl */),
     def_variant(def_id /* enum */, def_id /* variant */),
@@ -1095,7 +1095,7 @@ pub struct item {
 
 #[deriving(Eq, Encodable, Decodable)]
 pub enum item_ {
-    item_const(@Ty, @expr),
+    item_static(@Ty, mutability, @expr),
     item_fn(fn_decl, purity, AbiSet, Generics, blk),
     item_mod(_mod),
     item_foreign_mod(foreign_mod),