Update duplicated OrderedOptions code.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3664 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/lib/initializer.rb

@@ -569,10 +569,8 @@ end
 
 # Needs to be duplicated from Active Support since its needed before Active
 # Support is available.
-class OrderedOptions < Array # :nodoc:
-  def []=(key, value)
-    key = key.to_sym
-
+class OrderedHash < Array #:nodoc:
+  def []=(key, value)    
     if pair = find_pair(key)
       pair.pop
       pair << value
@@ -580,12 +578,32 @@ class OrderedOptions < Array # :nodoc:
       self << [key, value]
     end
   end
-
+  
   def [](key)
-    pair = find_pair(key.to_sym)
+    pair = find_pair(key)
     pair ? pair.last : nil
   end
 
+  def keys
+    self.collect { |i| i.first }
+  end
+
+  private
+    def find_pair(key)
+      self.each { |i| return i if i.first == key }
+      return false
+    end
+end
+
+class OrderedOptions < OrderedHash #:nodoc:
+  def []=(key, value)
+    super(key.to_sym, value)
+  end
+  
+  def [](key)
+    super(key.to_sym)
+  end
+
   def method_missing(name, *args)
     if name.to_s =~ /(.*)=$/
       self[$1.to_sym] = args.first
@@ -593,10 +611,4 @@ class OrderedOptions < Array # :nodoc:
       self[name]
     end
   end
-
-  private
-    def find_pair(key)
-      self.each { |i| return i if i.first == key }
-      return false
-    end
-end
+end