erichkeane added a comment.

I suspect this works because we never really treated this as a LL, just as a 
pair of iterators.  Two things:

1- Can you produce some situation where this is valuable to do?
2- Can you switch this over so that the NextInContextAndBits initializes to 
nullptr/0 so that this line isn't necessary?  I can't imagine we ever re-call 
this on a decl and have the answer be different.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D121063/new/

https://reviews.llvm.org/D121063

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