Hi,

On 09/06/2016 23:38, Jason Merrill wrote:
> I would think that when we see a duplicated base we should just drop
> the duplicates and continue.
>
> If the type of b1 is error_mark_node, why isn't the type of b2 also
> error_mark_node?
Thanks Jason. Normally check_initializer massages the decl basing on the 
init and so to speak transforms an error_mark_node as TREE_TYPE of the 
init into an error_mark_node as DECL_INITIAL of a reference. Thus we 
don't see error_mark_node as TREE_TYPE of b2. Now if I do something as 
trivial as the attached the testcase passes.

Next step, analyze the huge breakage caused by that change, I don't dare 
running the testsuite ;)

Thanks,
Paolo.

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