first propper hoisting test

had to change course, normalising and object creation is not possible
in one go
have to now generate random tmp vars  that will have to be picked up
later (sorted by tmp_ prefix?)

test/vool/ruby_compiler/test_method_statement.rb

@@ -27,9 +27,9 @@ module Vool
       assert_equal 2 , @lst.body.length
     end
     def test_body_is_scope_one_statement
-      input = "def tryout(arg1, arg2) ; true  ; end "
+      input = "def tryout(arg1, arg2) ; a = true  ; end "
       lst = RubyCompiler.compile( input )
-      assert_equal ScopeStatement , lst.body.class
+      assert_equal LocalAssignment , lst.body.class
     end
     def test_body_is_scope_zero_statement
       input = "def tryout(arg1, arg2) ;  ; end "