in rules/function-type.js [48:52]
function checkType(arg) {
return utils.isCallExpression(arg) ||
(configType === 'named' && (utils.isIdentifierType(arg) || utils.isNamedInlineFunction(arg))) ||
(configType === 'anonymous' && utils.isFunctionType(arg) && !utils.isNamedInlineFunction(arg));
}