[llvm] [fix test] Move typedefs-with-same-name.test into ARM folder (PR #167005)

[Roy Shi via llvm-commits]

royitaqi wrote:

Thanks for the quick review, @JDevlieghere. I appreciate it.

The patch has been tested locally. I will merge as soon as the CI Checks pass.

https://github.com/llvm/llvm-project/pull/167005