[llvm] [DebugInfo][IndVarSimplify] fix missing debug location updates (PR #91443)

[J. Ryan Stinnett via llvm-commits]

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@@ -0,0 +1,65 @@
+; RUN: opt < %s -passes=indvars -S | FileCheck %s
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jryans wrote:

Nit: Typo in file name: "preversing", should be "preserving"

https://github.com/llvm/llvm-project/pull/91443