[llvm] [llvm][ELF]Add Shdr check for getBuildID (PR #126537)

[Ruoyu Qiu via llvm-commits]

cabbaken wrote:

Thanks for the reminder about why an invalid program header causes llvm-objdump to crash.

What would be the best approach for the test? Should I add a new test case to llvm/test/tools/llvm-objdump/ELF/program-headers.test, or is it better to modify an existing one?

https://github.com/llvm/llvm-project/pull/126537