[llvm] [DebugInfo] Limit jump table test for x86 only (PR #72082)

[via llvm-commits]

HaohaiWen wrote:

> If this is limited to x86, shouldn't it be moved from the Generic to the X86 directory?

My original intention is to test all targets. Looks like 32bit target has different DAG to check.
Do you know whether there's convenient way (no need to add -mtriple for each target in ;RUN) to test all 64bit target?

If not, I'll move it to X86 directory.

https://github.com/llvm/llvm-project/pull/72082