function fix(fixer, left, right, spacing) {
			if (commentsExistBetween(left, right)) {
				return null;
			}
			if (spacing) {
				return fixer.insertTextAfter(left, " ");
			}
			return fixer.removeRange([left.range[1], right.range[0]]);
		}
Fix the spacing between the given 2 tokens.
@param {RuleFixer} fixer The fixer to fix.
@param {Token} left The left token of fix range.
@param {Token} right The right token of fix range.
@param {boolean} spacing The spacing style. `true` if there should be a space.
@returns {Fix|null} The fix object.