[llvm] [ADT] Simplify EnumeratedArray::operator[] (NFC) (PR #156811)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-adt

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

This patch simplifies EnumeratedArray::operator[] with the
injected-class-name.


---
Full diff: https://github.com/llvm/llvm-project/pull/156811.diff


1 Files Affected:

- (modified) llvm/include/llvm/ADT/EnumeratedArray.h (+1-2) 


``````````diff
diff --git a/llvm/include/llvm/ADT/EnumeratedArray.h b/llvm/include/llvm/ADT/EnumeratedArray.h
index fd0700c8e408a..93e1327306175 100644
--- a/llvm/include/llvm/ADT/EnumeratedArray.h
+++ b/llvm/include/llvm/ADT/EnumeratedArray.h
@@ -57,8 +57,7 @@ class EnumeratedArray {
   }
   ValueType &operator[](Enumeration Index) {
     return const_cast<ValueType &>(
-        static_cast<const EnumeratedArray<ValueType, Enumeration, LargestEnum,
-                                          IndexType, Size> &>(*this)[Index]);
+        static_cast<const EnumeratedArray &>(*this)[Index]);
   }
   IndexType size() const { return Size; }
   bool empty() const { return size() == 0; }

``````````

</details>


https://github.com/llvm/llvm-project/pull/156811