renamed info to MethodSource

lib/virtual/passes/collector.rb

@@ -15,7 +15,7 @@ module Virtual
         object.init_layout
       end
       if( object.is_a? Parfait::Method)
-        object.info.constants.each{|c| keep(c) }
+        object.source.constants.each{|c| keep(c) }
       end
       layout = object.get_layout
       keep layout

lib/virtual/passes/minimizer.rb

@@ -24,7 +24,7 @@ module Virtual
       end
       #puts "stayer #{function.name}"
       @gonners.delete function
-      function.info.blocks.each do |block|
+      function.source.blocks.each do |block|
         block.codes.each do |code|
           if code.is_a? Virtual::MessageSend
             @gonners.each do |stay|