finally creating less objects in the test

basic still #23 , now applied
Basic size of 20, interpreter gets 50 and the full set is 1024

Tests run more than twice as fast!!

test/support/risc_interpreter.rb

@@ -7,7 +7,7 @@ module Risc
     include ScopeHelper
 
     def setup
-      compiler = RubyX::RubyXCompiler.new(RubyX.default_test_options)
+      compiler = RubyX::RubyXCompiler.new(RubyX.interpreter_test_options)
       @linker = compiler.ruby_to_binary(@string_input, :interpreter)
       @interpreter = Interpreter.new(@linker)
       @interpreter.start_program