Some vool starting to work again

disabling some rubyx compiler tests

lib/mom/callable_compiler.rb

@@ -13,16 +13,16 @@ module Mom
       @constants = []
       @block_compilers = []
       @mom_instructions = Label.new(source_name, source_name)
-      @current = start = @risc_instructions
+      @current = start = @mom_instructions
       add_code Label.new( source_name, "return_label")
-      add_code Mom::ReturnSequence.new
+      add_code Mom::ReturnSequence.new(source_name)
       add_code Label.new( source_name, "unreachable")
       @current = start
     end
-    attr_reader :risc_instructions , :constants , :block_compilers , :callable , :current
+    attr_reader :mom_instructions , :constants , :block_compilers , :callable , :current
 
     def return_label
-      @risc_instructions.each do |ins|
+      @mom_instructions.each do |ins|
         next unless ins.is_a?(Label)
         return ins if ins.name == "return_label"
       end

lib/mom/instruction/label.rb

@@ -23,7 +23,8 @@ module Mom
 
   class Label < Instruction
     attr_reader :name
-    def initialize(name)
+    def initialize(source , name)
+      super(source)
       @name = name
     end
 

lib/mom/instruction/slot_load.rb

@@ -28,7 +28,8 @@ module Mom
 
     attr_reader :left , :right , :original_source
 
-    def initialize(left , right, original_source = nil)
+    def initialize(source , left , right, original_source = nil)
+      super(source)
       @left , @right = left , right
       @left = SlotDefinition.new(@left.shift , @left) if @left.is_a? Array
       @right = SlotDefinition.new(@right.shift , @right) if @right.is_a? Array