Get rid of constant redefinition warnings when running AP tests

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4610 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_view/helpers/prototype_helper.rb

@@ -815,8 +815,8 @@ def append_to_function_chain!(call)
     end
 
     class JavaScriptCollectionProxy < JavaScriptProxy #:nodoc:
-      ENUMERABLE_METHODS_WITH_RETURN = [:all, :any, :collect, :map, :detect, :find, :find_all, :select, :max, :min, :partition, :reject, :sort_by]
-      ENUMERABLE_METHODS = ENUMERABLE_METHODS_WITH_RETURN + [:each]
+      ENUMERABLE_METHODS_WITH_RETURN = [:all, :any, :collect, :map, :detect, :find, :find_all, :select, :max, :min, :partition, :reject, :sort_by] unless defined? ENUMERABLE_METHODS_WITH_RETURN
+      ENUMERABLE_METHODS = ENUMERABLE_METHODS_WITH_RETURN + [:each] unless defined? ENUMERABLE_METHODS
       attr_reader :generator
       delegate :arguments_for_call, :to => :generator
 

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

@@ -13,13 +13,13 @@ module Conversions
           ::Time       => "datetime",
           ::TrueClass  => "boolean",
           ::FalseClass => "boolean"
-        }
+        } unless defined? XML_TYPE_NAMES
 
         XML_FORMATTING = {
           "date"     => Proc.new { |date| date.to_s(:db) },
           "datetime" => Proc.new { |time| time.xmlschema },
           "binary"   => Proc.new { |binary| Base64.encode64(binary) }
-        }
+        } unless defined? XML_FORMATTING
 
         def self.included(klass)
           klass.extend(ClassMethods)