[llvm] [C API] Add function to create constantRange attributes to C API (PR #90505)

[Nikita Popov via llvm-commits]

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@@ -673,6 +673,14 @@ LLVMAttributeRef LLVMCreateTypeAttribute(LLVMContextRef C, unsigned KindID,
  */
 LLVMTypeRef LLVMGetTypeAttributeValue(LLVMAttributeRef A);
 
+/**
+ * Create a constantRange attribute
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nikic wrote:

```suggestion
 * Create a ConstantRange attribute.
```

https://github.com/llvm/llvm-project/pull/90505