[llvm] [gsymutil] Fix how invalid LLVM_stmt_seq is set and used (PR #164015)

[Jonas Devlieghere via llvm-commits]

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@@ -4,6 +4,7 @@
 
 # RUN: split-file %s %t
 # RUN: yaml2obj %t/merged_callsites.dSYM.yaml -o %t/merged_callsites.dSYM
+# The object file is manually tempered with such that the LLVM_stmt_seq of function_bad_stmt_seq is 0xFFFFFFFF.
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JDevlieghere wrote:

```suggestion
# The object file is manually tampered with such that the LLVM_stmt_seq of function_bad_stmt_seq is 0xFFFFFFFF.
```

https://github.com/llvm/llvm-project/pull/164015