[llvm] [MergeFuncs] Use sizeWithoutDebug to decide if we create a thunk (PR #68627)

[Nikita Popov 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 2
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nikic wrote:

Please pre-commit the test check regeneration, so that this shows a meaningful diff.

https://github.com/llvm/llvm-project/pull/68627