Add back missing `use` statement
@@ -8,7 +8,7 @@ use std::rc::Rc;
use syntex_errors::Handler;
use syntex_errors::emitter::ColorConfig;
-use syntex_syntax::ast::{self, ExprKind, FunctionRetTy, ItemKind, PatKind, TyKind, TyParamBound};
+use syntex_syntax::ast::{self, ExprKind, FunctionRetTy, ItemKind, LitKind, PatKind, TyKind, TyParamBound};
use syntex_syntax::codemap;
use syntex_syntax::parse::parser::Parser;
use syntex_syntax::parse::{lexer, ParseSess};
