[llvm] [orc-rt] Implement Windows target triple detection (PR #224514)

[Lang Hames via llvm-commits]

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@@ -130,7 +153,9 @@ add_library(RTTICrossDylibTestLib SHARED
 set_target_properties(RTTICrossDylibTestLib PROPERTIES
   PREFIX ""
   CXX_VISIBILITY_PRESET hidden
-  VISIBILITY_INLINES_HIDDEN ON)
+  VISIBILITY_INLINES_HIDDEN ON
+  WINDOWS_EXPORT_ALL_SYMBOLS ON
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lhames wrote:

Why export all symbols?

https://github.com/llvm/llvm-project/pull/224514