15 string references to breadcrumb

bartik.info.yml in core/themes/bartik/bartik.info.yml
core/themes/bartik/bartik.info.yml
block.block.bartik_breadcrumbs.yml in core/profiles/standard/config/optional/block.block.bartik_breadcrumbs.yml
core/profiles/standard/config/optional/block.block.bartik_breadcrumbs.yml
block.block.claro_breadcrumbs.yml in core/themes/claro/config/optional/block.block.claro_breadcrumbs.yml
core/themes/claro/config/optional/block.block.claro_breadcrumbs.yml
block.block.olivero_breadcrumbs.yml in core/themes/olivero/config/optional/block.block.olivero_breadcrumbs.yml
core/themes/olivero/config/optional/block.block.olivero_breadcrumbs.yml
block.block.olivero_breadcrumbs.yml in core/modules/system/tests/modules/olivero_test/config/optional/block.block.olivero_breadcrumbs.yml
core/modules/system/tests/modules/olivero_test/config/optional/block.block.olivero_breadcrumbs.yml
block.block.seven_breadcrumbs.yml in core/profiles/standard/config/optional/block.block.seven_breadcrumbs.yml
core/profiles/standard/config/optional/block.block.seven_breadcrumbs.yml
Breadcrumb404Test::testBreadcrumbOn404Pages in core/tests/Drupal/FunctionalTests/Breadcrumb/Breadcrumb404Test.php
Tests that different 404s don't create unnecessary cache entries.
claro.info.yml in core/themes/claro/claro.info.yml
core/themes/claro/claro.info.yml
d7_block.yml in core/modules/block/migrations/d7_block.yml
core/modules/block/migrations/d7_block.yml
olivero.info.yml in core/themes/olivero/olivero.info.yml
core/themes/olivero/olivero.info.yml
seven.info.yml in core/themes/seven/seven.info.yml
core/themes/seven/seven.info.yml
SystemBreadcrumbBlock::create in core/modules/system/src/Plugin/Block/SystemBreadcrumbBlock.php
Creates an instance of the plugin.
testing_theme_optional_blocks.info.yml in core/profiles/testing_themes_blocks/themes/testing_theme_optional_blocks/testing_theme_optional_blocks.info.yml
core/profiles/testing_themes_blocks/themes/testing_theme_optional_blocks/testing_theme_optional_blocks.info.yml
testing_theme_required_blocks.info.yml in core/profiles/testing_themes_blocks/themes/testing_theme_required_blocks/testing_theme_required_blocks.info.yml
core/profiles/testing_themes_blocks/themes/testing_theme_required_blocks/testing_theme_required_blocks.info.yml
testing_theme_without_blocks.info.yml in core/profiles/testing_themes_blocks/themes/testing_theme_without_blocks/testing_theme_without_blocks.info.yml
core/profiles/testing_themes_blocks/themes/testing_theme_without_blocks/testing_theme_without_blocks.info.yml

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