11 files declare their use of ShortcodeBase in Shortcode 8

BlockShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/BlockShortcode.php

BootstrapColumnShortcode.php in shortcode_example/src/Plugin/Shortcode/BootstrapColumnShortcode.php

ButtonShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/ButtonShortcode.php

ClearShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/ClearShortcode.php

DropcapShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/DropcapShortcode.php

HighlightShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/HighlightShortcode.php

ImageShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/ImageShortcode.php

ItemShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/ItemShortcode.php

LinkShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/LinkShortcode.php

QuoteShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/QuoteShortcode.php

RandomShortcode.php in shortcode_basic_tags/src/Plugin/Shortcode/RandomShortcode.php