start with #11

by adding striaght to compiler

test/mom/instruction/test_slot_definition1.rb

@@ -7,7 +7,8 @@ module Mom
       Parfait.boot!
       @compiler = Risc::FakeCompiler.new
       @definition = SlotDefinition.new(StringConstant.new("hi") , [])
-      @instruction = @definition.to_register(@compiler , InstructionMock.new)
+      @register = @definition.to_register(@compiler , InstructionMock.new)
+      @instruction = @compiler.instructions.first
     end
     def test_def_class
       assert_equal Risc::LoadConstant , @instruction.class

test/mom/instruction/test_slot_definition2.rb

@@ -6,7 +6,8 @@ module Mom
       Parfait.boot!
       @compiler = Risc::FakeCompiler.new
       @definition = SlotDefinition.new(:message , :caller)
-      @instruction = @definition.to_register(@compiler , InstructionMock.new)
+      @register = @definition.to_register(@compiler , "fake source")
+      @instruction = @compiler.instructions.first
     end
     def test_def_class
       assert_equal Risc::SlotToReg , @instruction.class
@@ -18,7 +19,7 @@ module Mom
       assert_equal :r0 , @instruction.array.symbol
     end
     def test_def_register # to next free register r1
-      assert_equal :r1 , @instruction.register.symbol
+      assert_equal :r1 , @register.symbol
     end
     def test_def_index # at caller index 6
       assert_equal 6 , @instruction.index

test/mom/instruction/test_slot_definition3.rb

@@ -6,22 +6,22 @@ module Mom
       Parfait.boot!
       @compiler = Risc::FakeCompiler.new
       @definition = SlotDefinition.new(:message , [:caller , :type])
-      @instruction = @definition.to_register(@compiler , InstructionMock.new)
+      @register = @definition.to_register(@compiler , InstructionMock.new)
     end
     def test_def_next_class
-      assert_equal Risc::SlotToReg , @instruction.next.class
+      assert_equal Risc::SlotToReg , @compiler.instructions[1].class
     end
     def test_def_next_next_class
-      assert_equal NilClass , @instruction.next.next.class
+      assert_equal NilClass , @compiler.instructions[2].class
     end
     def test_def_next_index
-      assert_equal 0 , @instruction.next.index
+      assert_equal 0 , @compiler.instructions[1].index
     end
     def test_def_next_register
-      assert_equal :r1 , @instruction.next.register.symbol
+      assert_equal :r1 , @compiler.instructions[1].register.symbol
     end
     def test_def_next_array
-      assert_equal :r1 , @instruction.next.array.symbol
+      assert_equal :r1 , @compiler.instructions[1].array.symbol
     end
   end
 end