fix many tests with preloading

preloading, something akin to builtin, loads some very small predefined (macro) methods for the tests to work (ie call)

lib/risc/builder.rb

@@ -208,6 +208,7 @@ module Risc
       factory = Parfait.object_space.get_factory_for( :Integer )
       calling = factory.get_type.get_method( :get_more )
       calling = Parfait.object_space.get_main #until we actually parse Factory
+      raise "no main defined" unless calling
       Mom::MessageSetup.new( calling ).build_with( self )
       self.build do
         factory_reg! << factory

lib/vool/class_expression.rb

@@ -50,7 +50,7 @@ module Vool
       @body.each(&block) if @body
     end
 
-    # This creates the Parfait class. But doesn not hadle reopening yet, so only new classes
+    # This creates the Parfait class. But doesn not handle reopening yet, so only new classes
     # Creating the class involves creating the instance_type (or an initial version)
     # which means knowing all used names. So we go through the code looking for
     # InstanceVariables or InstanceVariable Assignments, to do that.
@@ -70,8 +70,8 @@ module Vool
           ivar_hash[node.name] = :Object
         end
         @clazz.set_instance_type( Parfait::Type.for_hash( @clazz ,  ivar_hash ) )
-        @clazz
       end
+      @clazz
     end
 
     def to_s(depth = 0)