[clang] [LifetimeSafety] Use ImmutableList for buildOriginFlowChain DFS nodes (PR #208890)

[Yuan Suo via cfe-commits]

https://github.com/suoyuan666 edited 
https://github.com/llvm/llvm-project/pull/208890
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits