[PATCH] D75542: [Sema] Prevent UB for uninitialized `IsSurrogate`

[Brian Gesiak via Phabricator via cfe-commits]

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Comment at: clang/lib/Sema/SemaOverload.cpp:7371
     return;
   }
 
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@rsmith I'd definitely appreciate any pointers here -- if initializing `IsSurrogate` with a value as I do in this patch is the kind of change that doesn't "need" an explicit test, then great. But if a test is in order, I'd be happy to write one, but I'm not certain this `if` statement (and the one whose body statement I modify above) is being tested. Even commenting it out entirely still has `check-clang` passing for me. I'd greatly appreciate advice on how to exercise this code path in a Clang regression test.


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  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D75542/new/

https://reviews.llvm.org/D75542