Revert "Issue #2678568 by Wim Leers: Ensure good UX & DX even when A) rendering of placeholder fails, B) some response event subscriber fails"

This reverts commit eee35007.

Issue #2661470 by andypost, lauriii: KernelTestBase::render passes wrong values as a parameter for BareHtmlPageRenderer::renderBarePage

Issue #2664274 by alexpott, bojanz, fortis, Mile23, arknoll, Barryvdh: Combination of --prefer-dist and .gitattributes confuses our vendor test cleanup

Revert Issue #2658956 by Daniel_Rempe, catch, Jeff Cardwell, hctom, tstoeckler, dawehner: Taxonomy vocabulary data not available as views fields

Issue #2678568 by Wim Leers: Ensure good UX & DX even when A) rendering of placeholder fails, B) some response event subscriber fails

Issue #2632314 by alexpott, amateescu, ivanjaros: PluginSettingsBase::getThirdPartySettings() returns null instead of array

Issue #2237101 by Mile23, cordoval, YesCT, dawehner, tim.plunkett: clean up for Core/DependencyInjection CompilerPasses

Issue #2688668 by Berdir, bojanz: Register the new entity revision param enhancer/converter as services

Revert "Issue #2688668 by Berdir, bojanz: Register the new entity revision param enhancer/converter as services"

This reverts commit fff38959.

Issue #2688668 by Berdir, bojanz: Register the new entity revision param enhancer/converter as services

Issue #2664748 by amateescu, alexpott, TravisCarden: Node revision queries tagged for node access cause "no node table" exception

Issue #2677414 by blue_waters: VerticalTabs' #default_tab broken due to wrong/mismatching class name

Issue #1458824 by idebr, JvE, mayaz17, cwoky, Henrik Opel: Ajax doesn't work with Tableselect with checkboxes

Issue #2595613 by swentel, krknth, heykarthikwithu, k4v, aerozeppelin, naveenvalecha, alexpott: '#title_display' => 'invisible' does not work for composite form elements

Issue #2685021 by Lendude, cilefen, r0nn1ef, andypost: Fatal error: $this when not in object context in views.theme.inc

Issue #2666650 by alexpott, benjy: Inject migration and source plugin managers into the migration plugins

Issue #2678674 by Wim Leers, benjy, mr.baileys, dawehner, xjm, mlhess: Access bypass to unpublished custom error pages

Issue #2683421 by xjm, alexpott, hussainweb: Remove incremental and rollback options from the UI (and add them back when they are more stable)

Issue #2651986 by maxocub, balagan, Tom Robert, Kristen Pol, tstoeckler: Local task link "Translate" is not translated

Issue #2650246 by swentel, Wim Leers: Only emit Contextual Links data- attributes when actually necessary

Issue #2625138 by almaudoh, Oleksiy: EntityRepository::loadEntityByUuid() implementation does not match EntityRepositoryInterface::loadEntityByUuid() @return documentation

Issue #2688273 by xjm, yoroy: Remove emotional language from Inline Form Errors description and make it more concise

Issue #2682705 by davidwbarratt, alexpott, vprocessor, miiimooo, milesw: Migrate process plugin does not save stubs to the idmap, leads to duplicates and broken references

Issue #2573975 by alexpott, juampynr, Berdir, edurenye: function_exists check in PluralTranslatableString is wrong

Issue #2609874 by tstoeckler, mikeker, Kristen Pol, tassilogroeper: Boolean field "On label" and "Off label" are not translatable