[llvm] [llvm-c] Add C API methods to match size_t ConstantDataArray C++ API signatures (PR #84433)

[Quentin Dian via llvm-commits]

DianQK wrote:

"Squash and merge" is saying "This commit will be authored by 1377477+erer1243 at users.noreply.github.com".

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https://github.com/llvm/llvm-project/pull/84433