message: Import EvalError in lvalue.
diff: @@ -3,7 +3,7 @@ use rustc::ty::layout::{Size, Align};
  use rustc::ty::{self, Ty};
  use rustc_data_structures::indexed_vec::Idx;
  -use error::EvalResult;
  +use error::{EvalError, EvalResult};
  use eval_context::{EvalContext};
  use memory::Pointer;
  use value::{PrimVal, Value};
  