rsmith added a comment.

In https://reviews.llvm.org/D46919#1101268, @jdenny wrote:

> In https://reviews.llvm.org/D46919#1100493, @rsmith wrote:
>
> > The deprecated enumerator is also referenced by 
> > `tools/c-index-test/c-index-test.c`
>
>
> This test prompted me to keep the IncludeTagDefinition member in 
> PrintingPolicy so that clang_PrintingPolicy_getProperty would return the 
> previous value set by clang_PrintingPolicy_setProperty.  Otherwise, the value 
> doesn't have any effect.  Is that self-consistency not worth worrying about?  
> If so, I'll remove both.


I don't think it's worth worrying about. We don't guarantee that the values 
round-trip in general (most of them are `unsigned`s being written to a `bool`, 
so we don't preserve values that are neither 0 nor 1).


https://reviews.llvm.org/D46919



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