Issue #3258056: Simplify Stage::dispatch exception handling

tests/src/Functional/UpdaterFormTest.php

@@ -190,8 +190,8 @@ class UpdaterFormTest extends AutomaticUpdatesFunctionalTestBase {
     $assert_session->pageTextContainsOnce('An error has occurred.');
     $page->clickLink('the error page');
     // We should see the exception message, but not the validation result's
-    // messages or summary, because all exceptions thrown directly by event
-    // subscribers are wrapped in simple runtime exceptions and re-thrown.
+    // messages or summary, because exceptions thrown directly by event
+    // subscribers are wrapped in simple exceptions and re-thrown.
     $assert_session->pageTextContainsOnce($error->getMessage());
     $assert_session->pageTextNotContains((string) $expected_results[0]->getMessages()[0]);
     $assert_session->pageTextNotContains($expected_results[0]->getSummary());