7 string references to 'CacheBackendInterface'

dynamic_page_cache.services.yml in core/modules/dynamic_page_cache/dynamic_page_cache.services.yml
core/modules/dynamic_page_cache/dynamic_page_cache.services.yml
jsonapi.services.yml in core/modules/jsonapi/jsonapi.services.yml
core/modules/jsonapi/jsonapi.services.yml
migrate.services.yml in core/modules/migrate/migrate.services.yml
core/modules/migrate/migrate.services.yml
module_cache_bin.services.yml in core/modules/system/tests/modules/module_cache_bin/module_cache_bin.services.yml
core/modules/system/tests/modules/module_cache_bin/module_cache_bin.services.yml
page_cache.services.yml in core/modules/page_cache/page_cache.services.yml
core/modules/page_cache/page_cache.services.yml
rest.services.yml in core/modules/rest/rest.services.yml
core/modules/rest/rest.services.yml
toolbar.services.yml in core/modules/toolbar/toolbar.services.yml
core/modules/toolbar/toolbar.services.yml

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