start with melon and tests

First step, create a basic class

lib/melon/compiler.rb

@@ -0,0 +1,18 @@
+
+
+module Melon
+  class Compiler < AST::Processor
+
+    def self.compile input
+      ast = Parser::Ruby22.parse input
+      compiler = self.new
+      compiler.process ast
+    end
+
+    def on_class statement
+      name , _ , _ = *statement
+      clazz_name = name.children[1]
+      Parfait::Space.object_space.create_class(clazz_name , nil )
+    end
+  end
+end