[llvm] [WPD]: Enable speculative devirtualizatoin. (PR #159048)

[Teresa Johnson via llvm-commits]

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@@ -226,11 +226,14 @@ struct WholeProgramDevirtPass : public PassInfoMixin<WholeProgramDevirtPass> {
   ModuleSummaryIndex *ExportSummary;
   const ModuleSummaryIndex *ImportSummary;
   bool UseCommandLine = false;
+  bool DevirtSpeculatively = false;
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teresajohnson wrote:

This is never set by this PR. Probably this should move into PR159685.

https://github.com/llvm/llvm-project/pull/159048