[llvm] [llvm] Migrate away from PointerUnion::dyn_cast (NFC) (PR #123692)

[Nikita Popov via llvm-commits]

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@@ -3542,7 +3542,7 @@ void ModuleCallsiteContextGraph::updateAllocationCall(
 
 void IndexCallsiteContextGraph::updateAllocationCall(CallInfo &Call,
                                                      AllocationType AllocType) {
-  auto *AI = Call.call().dyn_cast<AllocInfo *>();
+  auto *AI = dyn_cast_if_present<AllocInfo *>(Call.call());
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nikic wrote:

Given the following assert, this should be just cast<>.

https://github.com/llvm/llvm-project/pull/123692