Ensure we guard against all exceptions, not just StandardError

activesupport/lib/active_support/notifications/fanout.rb

@@ -89,7 +89,7 @@ module ActiveSupport
 
         listeners.each do |s|
           yield s
-        rescue => e
+        rescue Exception => e
           exceptions ||= []
           exceptions << e
         end

activesupport/test/notifications/evented_notification_test.rb

@@ -5,7 +5,8 @@ require_relative "../abstract_unit"
 module ActiveSupport
   module Notifications
     class EventedTest < ActiveSupport::TestCase
-      class BadListenerException < RuntimeError; end
+      # we expect all exception types to be handled, so test with the most basic type
+      class BadListenerException < Exception; end
 
       class Listener
         attr_reader :events