[llvm] [Orc] Add NotifyCreated callback for LLJITBuilder (PR #84175)

[Stefan Gränitz via llvm-commits]

================
@@ -474,6 +487,11 @@ class LLJITBuilderSetters {
     std::unique_ptr<JITType> J(new JITType(impl(), Err));
     if (Err)
       return std::move(Err);
+
+    if (impl().NotifyCreated)
+      if (Error Err = impl().NotifyCreated(*J))
+        return Err;
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weliveindetail wrote:

I got a lot of buildbot emails, but they also came all day for all kinds of unrelated reasons... Anyway, sorry for the mess.

https://github.com/llvm/llvm-project/pull/84175