move most code from method_compiler to builder

rather use builder in two ways, than sometimes compiler and sometimes
builder
Also makes it possible to reuse builtin code in mom’s to_risc, as both
use builder. The builtin code by directly adding to compiler, the mom
code not.

test/risc/test_builder.rb

@@ -1,13 +1,13 @@
 require_relative "../helper"
 
 module Risc
-  class TestBuilderBoot < MiniTest::Test
+  class TestBuilderFalse < MiniTest::Test
 
     def setup
       Risc.machine.boot
       init = Parfait.object_space.get_init
+      @builder = Risc::MethodCompiler.new( init ).builder(false)
       @label = Risc::Label.new("source","name")
-      @builder = Risc::MethodCompiler.new( init ).builder
     end
     def test_has_build
       assert @builder.respond_to?(:build)
@@ -97,4 +97,18 @@ module Risc
       assert_equal :Space , op.left.type
     end
   end
+  class TestBuilderTrue < MiniTest::Test
+
+    def setup
+      Risc.machine.boot
+      @init = Parfait.object_space.get_init
+      @builder = Risc::MethodCompiler.new( @init ).builder(true)
+    end
+    def test_inserts_built
+      r1 = RiscValue.new(:r1 , :Space)
+      @builder.build{ space << r1 }
+      assert_equal Transfer , @init.risc_instructions.next.class , @init.risc_instructions.next
+    end
+
+  end
 end

test/risc/test_risc_value.rb

@@ -2,7 +2,7 @@ require_relative "../helper"
 
 class FakeBuilder
   attr_reader :built
-  def add(ins)
+  def add_code(ins)
     @built = ins
   end
 end