49 files declare their use of AssetInterface

AssetFactory.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/AssetFactory.php
AsseticNode.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/AsseticNode.php
AsseticTokenParser.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/AsseticTokenParser.php
AssetManager.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/AssetManager.php
AssetWriter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/AssetWriter.php
BaseCompilerFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/GoogleClosure/BaseCompilerFilter.php
BaseCompressorFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/Yui/BaseCompressorFilter.php
CacheBustingWorker.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/Worker/CacheBustingWorker.php
CallablesFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CallablesFilter.php
CoffeeScriptFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CoffeeScriptFilter.php
CompassFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CompassFilter.php
CompilerApiFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/GoogleClosure/CompilerApiFilter.php
CompilerJarFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/GoogleClosure/CompilerJarFilter.php
CssCompressorFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/Yui/CssCompressorFilter.php
CssEmbedFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CssEmbedFilter.php
CssImportFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CssImportFilter.php
CssMinFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CssMinFilter.php
CssRewriteFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CssRewriteFilter.php
DartFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/DartFilter.php
DependencyExtractorInterface.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/DependencyExtractorInterface.php
EmberPrecompileFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/EmberPrecompileFilter.php
EnsureFilterWorker.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/Worker/EnsureFilterWorker.php
FilterCollection.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/FilterCollection.php
FilterInterface.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/FilterInterface.php
GssFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/GssFilter.php
HandlebarsFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/HandlebarsFilter.php
JpegoptimFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/JpegoptimFilter.php
JpegtranFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/JpegtranFilter.php
JsCompressorFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/Yui/JsCompressorFilter.php
JSMinFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/JSMinFilter.php
JSMinPlusFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/JSMinPlusFilter.php
LazyAssetManager.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/LazyAssetManager.php
LessFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/LessFilter.php
LessphpFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/LessphpFilter.php
OptiPngFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/OptiPngFilter.php
PackagerFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/PackagerFilter.php
PackerFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/PackerFilter.php
PhpCssEmbedFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/PhpCssEmbedFilter.php
PngoutFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/PngoutFilter.php
RooleFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/RooleFilter.php
SassFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/Sass/SassFilter.php
ScssphpFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/ScssphpFilter.php
SprocketsFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/SprocketsFilter.php
StylusFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/StylusFilter.php
TypeScriptFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/TypeScriptFilter.php
UglifyCssFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/UglifyCssFilter.php
UglifyJs2Filter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/UglifyJs2Filter.php
UglifyJsFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/UglifyJsFilter.php
WorkerInterface.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/Worker/WorkerInterface.php