[llvm] [IR] Verify parameters of TargetExtTypes (PR #105084)

[Matt Arsenault via llvm-commits]

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@@ -723,6 +724,16 @@ static void forEachUser(const Value *User,
   }
 }
 
+void Verifier::visitTargetExtType(TargetExtType *TTy) {
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arsenm wrote:

maybe you could dig around in the type cache, but that's ugly 

https://github.com/llvm/llvm-project/pull/105084