Lots of preloading for tests

so many relied (implicitly( on some builtin function
after all can't do much in ruby without calling
Now all those dependencies are explicit
Small risc changes come because the macro version has a return label and unreachable label

test/risc/test_linker.rb

@@ -2,12 +2,10 @@ require_relative "helper"
 
 module Risc
   class TestLinkerObjects < MiniTest::Test
-
+    include ScopeHelper
     def setup
-      Parfait.boot!(Parfait.default_test_options)
-      Mom.boot!
-      Risc.boot!
-      @linker = Mom::MomCollection.new.to_risc.translate(:arm)
+      compiler = compiler_with_main()
+      @linker = compiler.to_target( :arm)
     end
     def test_objects
       objects = @linker.object_positions
@@ -26,7 +24,7 @@ module Risc
       assert_equal 0 ,  Position.get(@linker.cpu_init).at
     end
     def test_cpu_at
-      assert_equal "0x9d9c" ,  Position.get(@linker.cpu_init.first).to_s
+      assert_equal "0x93bc" ,  Position.get(@linker.cpu_init.first).to_s
     end
     def test_cpu_label
       assert_equal Position ,  Position.get(@linker.cpu_init.first).class