[llvm] [IR] Replace of PointerType::get(Type) with opaque version (NFC) (PR #123617)

[Nikita Popov via llvm-commits]

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@@ -286,7 +286,7 @@ struct Modifier {
   /// Pick a random pointer type.
   Type *pickPointerType() {
     Type *Ty = pickType();
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nikic wrote:

No need to pickType() anymore.

https://github.com/llvm/llvm-project/pull/123617