function isClosingToken(token) {
  return (
    token != null &&
    (token.type === 'HTMLEndTagOpen' ||
      token.type === 'VExpressionEnd' ||
      (token.type === 'Punctuator' &&
        (token.value === ')' || token.value === '}' || token.value === ']')))
  )
}
Check whether a given token is a closing token which triggers unindent.
@param {Token} token The token to check.
@returns {boolean} `true` if the token is a closing token.