[clang] [clang] Fix a possible out-of-bounds read (PR #80023)

[Timm Baeder via cfe-commits]

Timm =?utf-8?q?Bäder?= <tbaeder at redhat.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/80023 at github.com>


https://github.com/tbaederr edited https://github.com/llvm/llvm-project/pull/80023