[llvm] Fix mistake in comment regarding dyn_cast_or_null (PR #108026)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-support

Author: ofri frishman (ofri-frishman)

<details>
<summary>Changes</summary>

There was a mistake in a comment regarding dyn_cast_or_null deprication.
It was suggested to use cast_if_present instead of dyn_cast_or_null, but that was probably a copy paste mistake, and dyn_cast_if_present is the function that should be used instead of dyn_cast_or_null.

---
Full diff: https://github.com/llvm/llvm-project/pull/108026.diff


1 Files Affected:

- (modified) llvm/include/llvm/Support/Casting.h (+1-1) 


``````````diff
diff --git a/llvm/include/llvm/Support/Casting.h b/llvm/include/llvm/Support/Casting.h
index 14a32ccd0e0dc9..66fdcb44ea2c00 100644
--- a/llvm/include/llvm/Support/Casting.h
+++ b/llvm/include/llvm/Support/Casting.h
@@ -755,7 +755,7 @@ template <class X, class Y> auto dyn_cast_if_present(Y *Val) {
 
 // Forwards to dyn_cast_if_present to avoid breaking current users. This is
 // deprecated and will be removed in a future patch, use
-// cast_if_present instead.
+// dyn_cast_if_present instead.
 template <class X, class Y> auto dyn_cast_or_null(const Y &Val) {
   return dyn_cast_if_present<X>(Val);
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/108026