move the pass running out of elf

and leave it up to user
later partial running planned

lib/elf/object_writer.rb

@@ -17,7 +17,6 @@ module Elf
       @text = Elf::TextSection.new(".text")
       @object.add_section @text
 
-      @object_machine.run_passes
       assembler = Register::Assembler.new(@object_machine)
       set_text assembler.write_as_string
 

test/virtual/test_hello.rb

@@ -6,11 +6,11 @@ class HelloTest < MiniTest::Test
   def check
     machine = Virtual::Machine.boot
     expressions = machine.compile_main @string_input
+    puts Sof::Writer.write(machine.space)
+    machine.run_passes
 
     writer = Elf::ObjectWriter.new(machine)
     writer.save "hello.o"
-#    puts Sof::Writer.write(expressions)
-    puts Sof::Writer.write(machine.space)
   end
 
   def qtest_simplest_function