[llvm] [NFC] Various Cleanup in StackColoring, StackSlotColoring, LiveStacks (PR #143931)

[via llvm-commits]

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@@ -581,6 +581,41 @@ onerr:
 
 %Data = type { [32 x i64] }
 
+declare void @throw()
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Ralender wrote:

This is a test case where StackColoring doesn't remove lifetime annotations.

https://github.com/llvm/llvm-project/pull/143931