[llvm] [LLVM] Add C API support for handling global object metadata. (PR #104786)

[Nikita Popov via llvm-commits]

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@@ -1062,15 +1062,27 @@ void LLVMReplaceAllUsesWith(LLVMValueRef OldVal, LLVMValueRef NewVal) {
   unwrap(OldVal)->replaceAllUsesWith(unwrap(NewVal));
 }
 
-int LLVMHasMetadata(LLVMValueRef Inst) {
-  return unwrap<Instruction>(Inst)->hasMetadata();
+int LLVMHasMetadata(LLVMValueRef Ref) {
+  Value *Val = unwrap<Value>(Ref);
+  if (auto I = dyn_cast<Instruction>(Val))
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nikic wrote:

```suggestion
  if (auto *I = dyn_cast<Instruction>(Val))
```
etc.

https://github.com/llvm/llvm-project/pull/104786