fix all tests again

lib/virtual/compiler/basic_expressions.rb

@@ -73,7 +73,7 @@ module Virtual
       def self.compile_string expression , method
         value = StringConstant.new(expression.string)
         to = Return.new(Reference , value)
-        Space.space.add_object value
+        Machine.instance.space.add_object value
         method.add_code Set.new( to , value )
         to
       end

lib/virtual/compiler/function_expression.rb

@@ -8,8 +8,8 @@ module Virtual
       end
       r = expression.receiver ? Compiler.compile(expression.receiver, method ) : Self.new()
       new_method = CompiledMethod.new(expression.name , args , r )
-      new_method.class_name = r.is_a?(BootClass) ? r.name : method.class_name
-      clazz = Space.space.get_or_create_class(new_method.class_name)
+      new_method.class_name = r.is_a?(Parfait::Class) ? r.name : method.class_name
+      clazz = Machine.instance.space.get_or_create_class(new_method.class_name)
       clazz.add_instance_method new_method
 
       #frame = frame.new_frame

lib/virtual/machine.rb

@@ -117,7 +117,7 @@ module Virtual
       [:get , :set , :puts].each do |f|
         obj.add_instance_method Builtin::String.send(f , nil)
       end
-      obj = get_or_create_class :Array
+      obj = space.get_or_create_class :Array
       [:get , :set , :push].each do |f|
         obj.add_instance_method Builtin::Array.send(f , nil)
       end

lib/virtual/passes/send_implementation.rb

@@ -26,7 +26,7 @@ module Virtual
           else
             # note: this is the current view: call internal send, even the method name says else
             # but send is "special" and accesses the internal method name and resolves.
-            kernel = Virtual::Space.space.get_or_create_class(:Kernel)
+            kernel = Virtual::Machine.instance.space.get_or_create_class(:Kernel)
             method = kernel.get_instance_method(:__send)
             new_codes << MethodCall.new( method )
             raise "unimplemented #{code}"