invalid vtable definition

[giladreti]

IDA prefixes some function names with the [thunk]: attributes (i.e. [thunk]:func).
It looks like the generated vtable will generate this function slot name as thunk_:func which will make IDA complain as it is invalid syntax.

Those, when generating a class definition from the structure builder IDA will pop up a message telling the user that the generation failed, and will not be able to generate the final class definition.