magento-test/app/code/Magento/Catalog/view/frontend/requirejs-config.js

/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

var config = {
    map: {
        '*': {
            compareList:            'Magento_Catalog/js/list',
            relatedProducts:        'Magento_Catalog/js/related-products',
            upsellProducts:         'Magento_Catalog/js/upsell-products',
            productListToolbarForm: 'Magento_Catalog/js/product/list/toolbar',
            catalogGallery:         'Magento_Catalog/js/gallery',
            catalogAddToCart:       'Magento_Catalog/js/catalog-add-to-cart'
        }
    },
    config: {
        mixins: {
            'Magento_Theme/js/view/breadcrumbs': {
                'Magento_Catalog/js/product/breadcrumbs': true
            }
        }
    }
};