[PATCH] D135118: [clang/Sema] Fix non-deterministic order for certain kind of diagnostics

[Argyrios Kyrtzidis via Phabricator via cfe-commits]

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In the context of caching clang invocations it is important to emit diagnostics in deterministic order;
the same clang invocation should result in the same diagnostic output.

rdar://100336989


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135118

Files:
  clang/include/clang/AST/DeclObjC.h
  clang/include/clang/Sema/Scope.h
  clang/test/Sema/deterministic-diagnostics-order.m

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