[PATCH] widl: Limit recursion deepth within structs to 1 for checking for full-pointers.

[Kai Tietz]

Hello,

attached patch limits recursion in type_has_full_pointer-function to a
deeth of 1.  By this all necessary checks should be possible, but
endless-recursion due diamond/cycle type-declarations are avoided.
I was finding this issue by working on propidl.idl rework, and hit
such an endless recursion.

Regards,
Kai
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