small fix

lib/bosl/compiler/callsite_expression.rb

@@ -59,7 +59,7 @@ module Bosl
           @method.source.add_code Virtual::MethodCall.new( method )
         else
           method = @clazz.get_instance_method(name)
-          raise "Method not implemented Integer.#{name}" unless method
+          raise "Method not implemented #{@clazz.name}.#{name}" unless method
           @method.source.add_code Virtual::MethodCall.new( method )
         end
       end

test/compiler/test_methods.rb

@@ -176,10 +176,13 @@ HERE
   def test_function_big_while
     @string_input    = <<HERE
 class Object
+  int puts(int i)
+    return 0
+  end
   int fibonaccit(int n)
     int a = 0
     int b = 1
-    while( n > 1 ) do
+    while( n > 1 )
       int tmp = a
       a = b
       b = tmp + b