ifx most of the conversion

well . . it's still converting to ruby, minor detail

lib/ruby/variables.rb

@@ -0,0 +1,36 @@
+module Ruby
+  module Named
+    attr_reader :name
+    def initialize name
+      @name = name
+    end
+    def each(&block)
+    end
+  end
+
+  class LocalVariable < Expression
+    include Named
+    def to_s
+      name.to_s
+    end
+  end
+
+  class InstanceVariable < Expression
+    include Named
+    # used to collect type information
+    def add_ivar( array )
+      array << @name
+    end
+    def to_s
+      "@#{name}"
+    end
+  end
+
+  class ClassVariable < Expression
+    include Named
+  end
+
+  class ModuleName < Expression
+    include Named
+  end
+end