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/support/compiling.rb

@@ -1,6 +1,11 @@
 
 module ScopeHelper
 
+  def compiler_with_main(options = {})
+    compiler = RubyX::RubyXCompiler.new(RubyX.default_test_options.merge(options))
+    compiler.ruby_to_vool( "class Space;def main(arg);return;end;end" )
+    compiler
+  end
   def in_Test(statements)
     "class Test ; #{statements} ; end"
   end