Issue #2557519 by alexpott, joelpittet: Remove many usages SafeMarkup::checkPlain() and replace with Html::escape()

Issue #2525910 by dawehner, effulgentsia, Berdir, lauriii, larowlan, timmillwood, Wim Leers, chx, arlinsandbulte, Fabianx, Gábor Hojtsy, Dave Reid, alexpott, catch: Ensure token replacements have cacheability + attachments metadata and that it is bubbled in any case

Issue #2457887 by prateekMehta, stefan.r, rpayanm, alexpott: Use Utility\SafeMarkup class instead of Utility\String for placeholder(), checkPlain(),format() functions

Issue #2409209 by dawehner, xjm, mpdonadio, Wim Leers, hussainweb, RavindraSingh, prashantgoel: Replace all _url() calls beside the one in _l()

Issue #2343661 by larowlan, tim.plunkett | xjm: Rename l() to _l() and url() to _url(), and document replacements.

Issue #2187829 by longwave, IshaDakota, ianthomas_uk, richard.c.allen2386: Convert all calls to check_plain() in core to Drupal\Component\Utility\String::checkPlain() in core/modules/views.

Issue #2065115 by sergeypavlenko: Remove Unused local variable  from /core/modules/views/views.tokens.inc.

Issue #1754246 by webflo, swentel, penyaskito, andypost, alexpott, YesCT, dagmar: Languages should be configuration entities.

Issue #1888390 by dawehner, damiankloip, tim.plunkett: Change 'human_name()' to 'label' and replace View::getHumanName() with View::label().

Issue #1792844 by tim.plunkett: Change more public properties to protected in ViewExecutable and ViewStorage.