function isValid(left, right) {
			return (
				!util.isTokenOnSameLine(left, right) ||
				sourceCode.isSpaceBetweenTokens(left, right) === always
			);
		}
Checks whether or not:
  - given tokens are on same line.
  - there is/isn't a space between given tokens.
@param {Token} left A token to check.
@param {Token} right The token which is next to `left`.
@returns {boolean}
   When the option is `"always"`, `true` if there are one or more spaces between given tokens.
   When the option is `"never"`, `true` if there are not any spaces between given tokens.
   If given tokens are not on same line, it's always `true`.