balazske added a comment.

This is really a NFC-like change but not NFC because it has visible effects of 
removing some crashes. I could not produce a test that provokes the wrong case 
(when `getParents` returns an empty list). Is it enough to have no new test 
here? If we can get a test for the crash it needs more investigation to check 
if `RecursiveASTVisitor` works correct and probably a fix at other place.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D136684/new/

https://reviews.llvm.org/D136684

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