[llvm] [LTO][WPD] Suppress WPD on a class if the LTO unit doesn't have the prevailing definition of this class (PR #131721)

[Mingming Liu via llvm-commits]

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@@ -0,0 +1,188 @@
+; RUN: rm -rf %t && mkdir %t && cd %t
+
+; Tests that devirtualization is suppressed on a class when the LTO unit doesn't
+; have the prevailing definition of the class.
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mingmingl-llvm wrote:

done.

https://github.com/llvm/llvm-project/pull/131721