alternative resolution to vendor load problem

Signed-off-by: David Heinemeier Hansson <david@loudthinking.com>

activesupport/lib/active_support/dependencies.rb

@@ -313,8 +313,13 @@ def loadable_constants_for_path(path, bases = load_paths)
         nesting = expanded_path[(expanded_root.size)..-1]
         nesting = nesting[1..-1] if nesting && nesting[0] == ?/
         next if nesting.blank?
-
-        [ nesting.camelize ]
+        nesting_camel = nesting.camelize
+        begin
+          qualified_const_defined?(nesting_camel)
+        rescue NameError
+          next
+        end
+        [ nesting_camel ]
       end.flatten.compact.uniq
     end
 
@@ -485,28 +490,24 @@ def new_constants_in(*descs)
       # Build the watch frames. Each frame is a tuple of
       #   [module_name_as_string, constants_defined_elsewhere]
       watch_frames = descs.collect do |desc|
-        begin
-          if desc.is_a? Module
-            mod_name = desc.name
-            initial_constants = desc.local_constant_names
-          elsif desc.is_a?(String) || desc.is_a?(Symbol)
-            mod_name = desc.to_s
+        if desc.is_a? Module
+          mod_name = desc.name
+          initial_constants = desc.local_constant_names
+        elsif desc.is_a?(String) || desc.is_a?(Symbol)
+          mod_name = desc.to_s
 
-            # Handle the case where the module has yet to be defined.
-            initial_constants = if qualified_const_defined?(mod_name)
-              mod_name.constantize.local_constant_names
-            else
-              []
-            end
+          # Handle the case where the module has yet to be defined.
+          initial_constants = if qualified_const_defined?(mod_name)
+            mod_name.constantize.local_constant_names
           else
-            raise Argument, "#{desc.inspect} does not describe a module!"
+            []
           end
-          [mod_name, initial_constants]
-        rescue NameError
-          # mod_name isn't a valid constant name
-          nil
+        else
+          raise Argument, "#{desc.inspect} does not describe a module!"
         end
-      end.compact
+
+        [mod_name, initial_constants]
+      end
 
       constant_watch_stack.concat watch_frames