avoids a ton o warnings activesupport/lib/active_support/dependencies.rb:239:...

avoids a ton o warnings activesupport/lib/active_support/dependencies.rb:239: warning: loading in progress, circular require considered harmful ... activesupport/lib/active_support/core_ext/hash/indifferent_access.rb while running the suite in Ruby 1.9.2

activesupport/lib/active_support/core_ext/hash/indifferent_access.rb

@@ -7,8 +7,6 @@ class Hash
   #   {:a => 1}.with_indifferent_access["a"] # => 1
   #
   def with_indifferent_access
-    hash = ActiveSupport::HashWithIndifferentAccess.new(self)
-    hash.default = self.default
-    hash
+    ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default(self)
   end
 end

activesupport/lib/active_support/hash_with_indifferent_access.rb

-require 'active_support/core_ext/hash/indifferent_access'
 require 'active_support/core_ext/hash/keys'
 
 # This class has dubious semantics and we only have it so that
@@ -28,6 +27,12 @@ def default(key = nil)
       end
     end
 
+    def self.new_from_hash_copying_default(hash)
+      ActiveSupport::HashWithIndifferentAccess.new(hash).tap do |new_hash|
+        new_hash.default = hash.default
+      end
+    end
+
     alias_method :regular_writer, :[]= unless method_defined?(:regular_writer)
     alias_method :regular_update, :update unless method_defined?(:regular_update)