:cut: remove unnecessary rescue Exceptions

activerecord/Rakefile

@@ -10,7 +10,7 @@ def run_without_aborting(*tasks)
   tasks.each do |task|
     begin
       Rake::Task[task].invoke
-    rescue Exception
+    rescue
       errors << task
     end
   end

activerecord/test/cases/associations/callbacks_test.rb

@@ -180,7 +180,7 @@ def test_dont_add_if_before_callback_raises_exception
     assert !@david.unchangable_posts.include?(@authorless)
     begin
       @david.unchangable_posts << @authorless
-    rescue Exception
+    rescue
     end
     assert @david.post_log.empty?
     assert !@david.unchangable_posts.include?(@authorless)

activerecord/test/cases/query_cache_test.rb

@@ -235,7 +235,7 @@ def test_query_cache_doesnt_leak_cached_results_of_rolled_back_queries
         assert_equal 1, Post.where(title: 'rollback').to_a.count
         raise 'broken'
       end
-    rescue Exception
+    rescue
     end
 
     assert_equal 0, Post.where(title: 'rollback').to_a.count