[PATCH] D75701: Initialize IsSurrogate

[Fangrui Song via Phabricator via cfe-commits]

MaskRay accepted this revision.
MaskRay added a comment.
This revision is now accepted and ready to land.

Confirmed that the patch fixes `valgrind clang -cc1 -S -std=c++17 -o native-stack.s native-stack.ii` for a -O0 -g Debug build.

`-DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=on`  does not have the `Conditional jump or move depends on uninitialised value` issue.


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  https://reviews.llvm.org/D75701/new/

https://reviews.llvm.org/D75701