update to use new ast

soml was updated to have a typed ast layer to make programatic creation
easier
this brings LOTS of syntax change with it, that does not really mean
anything at all
All tests pass again so back to the same

lib/soml/compiler/assignment.rb

@@ -1,19 +1,19 @@
 module Soml
   Compiler.class_eval do
 
-    def on_assignment statement
+    def on_Assignment statement
       reset_regs # statements reset registers, ie have all at their disposal
       #puts statement.inspect
-      name , value = *statement
-      name = no_space name.to_a.first
-      v = process(value)
+#      name , value = *statement
+      name_s = no_space statement.name
+      v = process(statement.value)
       raise "Not register #{v}" unless v.is_a?(Register::RegisterValue)
       code = nil
-      if( index = @method.has_arg(name))
+      if( index = @method.has_arg(name_s.name))
          # TODO, check type @method.arguments[index].type
         code = Register.set_slot(statement , v , :message , Parfait::Message.get_indexed(index) )
       else # or a local so it is in the frame
-        index = @method.has_local( name )
+        index = @method.has_local( name_s.name )
         if(index)
           # TODO, check type  @method.locals[index].type
           frame = use_reg(:Frame)