[clang] [UBSan] Implement src:*=sanitize for UBSan (PR #140529)

[Vitaly Buka via cfe-commits]

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@@ -0,0 +1,37 @@
+// RUN: rm -rf %t
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vitalybuka wrote:

But in this case we failed to do so, if reordering of patches is needed, SPR often fails.

https://github.com/llvm/llvm-project/pull/140529