start a new ruby layer to do the to_vool conversion

the "normalization" is getting more and more complicated and is not tested
And it seems i really don't like working with the untyped ast

test/ruby/test_hash_statement.rb

@@ -0,0 +1,36 @@
+require_relative "helper"
+
+module Ruby
+  class HashArrayX < MiniTest::Test
+    include RubyTests
+
+    def test_empty
+      lst = compile( "{}")
+      assert_equal HashStatement , lst.class
+    end
+    def test_empty_length
+      lst = compile( "{}")
+      assert_equal 0 , lst.length
+    end
+    def test_one
+      lst = compile( "{ 1 => 2}")
+      assert_equal HashStatement , lst.class
+    end
+    def test_one_length
+      lst = compile( "{ 1 => 2}")
+      assert_equal 1 , lst.length
+    end
+    def test_one_pair
+      lst = compile( "{ 1 => 2}")
+      assert_equal 1 , lst.hash.keys.first.value
+    end
+    def test_two_length
+      lst = compile( "{ sym: :works , 'string_too' => 2}")
+      assert_equal 2 , lst.length
+    end
+    def test_two_key_one
+      lst = compile( "{ sym: :works , 'string_too' => 2}")
+      assert_equal :sym , lst.hash.keys.first.value
+    end
+  end
+end