[llvm] [OpenMP] Fix OpenMPIRBuilder generating incorrect duplicate SrcLocInfo (PR #100364)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

Could we merge this with https://github.com/llvm/llvm-project/pull/100358? We're going to need to backport this and it's much easier when it's a single commit.

https://github.com/llvm/llvm-project/pull/100364