[clang] [clang][ExprConst] allow single element access of vector object to be constant expression (PR #101126)

[Vikram Hegde via cfe-commits]

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@@ -64,6 +64,9 @@ sections with improvements to Clang's support for those languages.
 
 C++ Language Changes
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+- Allow single element access of vector object to be constant expression.
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vikramRH wrote:

done

https://github.com/llvm/llvm-project/pull/101126