message: Dump instrinsic and C ABI return values.
diff: @@ -205,6 +205,7 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
  _ => return Err(EvalError::Unreachable),
  };
  self.call_intrinsic(def_id, substs, arg_operands, ret, ty, layout, target)?;
  + self.dump_local(ret);
  Ok(())
  }
  @@ -212,6 +213,7 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
  let ty = fn_ty.sig.0.output();
  let (ret, target) = destination.unwrap();
  self.call_c_abi(def_id, arg_operands, ret, ty)?;
  + self.dump_local(ret);
  self.goto_block(target);
  Ok(())
  }
  