[llvm] [HWASAN] Use sign extension in memToShadow() and untagPointer() (PR #103727)

[Vitaly Buka via llvm-commits]

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@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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vitalybuka wrote:

update_test_checks does not work realy well with multiple refixes CHECK,NOOFFSET,MATCH-ALL

In a separate PR can you regenerate and assign single prefix per test case?
 

https://github.com/llvm/llvm-project/pull/103727