[llvm] [IR][unittests] Replace of PointerType::get(Type) with opaque version (NFC) (PR #123621)

[Mats Jun Larsen via llvm-commits]

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@@ -406,8 +406,8 @@ TEST(InstructionsTest, CastCAPI) {
   Type *FloatTy = Type::getFloatTy(C);
   Type *DoubleTy = Type::getDoubleTy(C);
 
-  Type *Int8PtrTy = PointerType::get(Int8Ty, 0);
-  Type *Int32PtrTy = PointerType::get(Int32Ty, 0);
+  Type *Int8PtrTy = PointerType::get(C, 0);
+  Type *Int32PtrTy = PointerType::get(C, 0);
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junlarsen wrote:

I also took care of some the same issue in the test above and below.

https://github.com/llvm/llvm-project/pull/123621