Port the compiler to foo<T> decl syntax.

src/comp/front/attr.rs

@@ -189,7 +189,7 @@ fn require_unique_names(sess: &session::session,
     }
 }
 
-fn span[T](item: &T) -> ast::spanned<T> {
+fn span<T>(item: &T) -> ast::spanned<T> {
     ret {node: item, span: ast::mk_sp(0u, 0u)};
 }
 

src/comp/front/test.rs

@@ -167,7 +167,7 @@ fn mk_test_module(cx: &test_ctxt) -> @ast::item {
     ret @item;
 }
 
-fn nospan[T](t: &T) -> ast::spanned<T> {
+fn nospan<T>(t: &T) -> ast::spanned<T> {
     ret {node: t, span: ast::dummy_sp()};
 }