message: refactor argument name
  NOTE:
  related docs:
  adjust to flowtype definition
diff: @@ -2,12 +2,12 @@ import config from '../config'
  import { warn } from './debug'
  import { inBrowser } from './env'
  -export function handleError (err, vm, type) {
  +export function handleError (err, vm, info) {
  if (config.errorHandler) {
  - config.errorHandler.call(null, err, vm, type)
  + config.errorHandler.call(null, err, vm, info)
  } else {
  if (process.env.NODE_ENV !== 'production') {
  - warn(`Error in ${type}:`, vm)
  + warn(`Error in ${info}:`, vm)
  }
  /* istanbul ignore else */
  if (inBrowser && typeof console !== 'undefined') {
  