sammccall added a comment.

The forward-declaration-in-main-file case:
In principle, if the definition is missing, I think we should treat these 
differently (not index them, or treat them as visible-outside file) because 
they're almost certainly declared "properly" elsewhere.
@ilya-biryukov convinced me offline that this isn't a big deal in practice as 
forward declarations in main-files (and not subsequently defining the symbol) 
aren't that useful.
So going to avoid patching that, as there might be unintended consequences.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D55185/new/

https://reviews.llvm.org/D55185



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