function report( last, current, loc ) {
		context.report({
			'node': null,
			'message': '"@'+current+'" tag should not follow "@'+last+'"',
			'loc': loc
		});
	}
Reports the error message.

@private
@param {string} last - name of last tag
@param {string} current - name of current tag
@param {Object} loc - lines of code (object with `start` and `end` properties)