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

[James Henderson via llvm-commits]

jh7370 wrote:

> > That and check that there is boundary condition testing already.
> 
> It's passed the check now~

Did you check to see if there was any boundary condition testing for this case?

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