1.1 --- a/src/Types.cpp	Mon Jul 30 12:13:08 2012 -0700
     1.2 +++ b/src/Types.cpp	Mon Jul 30 12:13:22 2012 -0700
     1.3 @@ -45,6 +45,8 @@
     1.4      if (!type)
     1.5          return NULL;
     1.6  
     1.7 +    assert(!tag || strcmp(tag->chars(), "_"));
     1.8 +
     1.9      type->kind_ = PRIMITIVE;
    1.10      type->tag_ = tag;
    1.11      type->contained_ = NULL;