more test fixes and more to do

test/mom/instruction/helper.rb

@@ -2,5 +2,8 @@ require_relative '../helper'
 
 module Mom
   class InstructionMock < Instruction
+    def initialize
+      super("mocking")
+    end
   end
 end

test/mom/instruction/test_slot_load3.rb

@@ -8,7 +8,7 @@ module Mom
       method = make_method
       @compiler = Risc::FakeCompiler.new
       @cache_entry = Parfait::CacheEntry.new(method.frame_type, method)
-      load = SlotLoad.new( [@cache_entry , :cached_type] , [:message, :type] )
+      load = SlotLoad.new("test", [@cache_entry , :cached_type] , [:message, :type] )
       load.to_risc(@compiler)
       @instructions = @compiler.instructions
     end