Issue #1786490 by Berdir, amateescu, damiankloip, dawehner: Add caching to the state system.

core/core.services.yml

core/includes/install.core.inc

core/lib/Drupal.php

core/lib/Drupal/Core/Asset/CssCollectionOptimizer.php

core/lib/Drupal/Core/Asset/CssCollectionRenderer.php

core/lib/Drupal/Core/Asset/JsCollectionOptimizer.php

core/lib/Drupal/Core/Asset/JsCollectionRenderer.php

core/lib/Drupal/Core/Extension/CachedModuleHandler.php

core/lib/Drupal/Core/KeyValueStore/State.php

core/lib/Drupal/Core/KeyValueStore/StateInterface.php

core/lib/Drupal/Core/Language/LanguageManager.php

core/lib/Drupal/Core/Path/AliasManager.php

core/lib/Drupal/Core/Path/AliasWhitelist.php

core/lib/Drupal/Core/PrivateKey.php

...field/lib/Drupal/field/FieldInstanceStorageController.php

...modules/field/lib/Drupal/field/FieldStorageController.php

...odules/file/lib/Drupal/file/Tests/FileManagedTestBase.php

...nguage/lib/Drupal/language/Tests/LanguageFallbackTest.php

...dules/locale/lib/Drupal/locale/Form/TranslateFormBase.php

...modules/node/lib/Drupal/node/Plugin/Search/NodeSearch.php