[lld] [lld] Sort data chunks before code chunks on ARM64EC. (PR #70722)

[Martin Storsjö via llvm-commits]

https://github.com/mstorsjo approved this pull request.

LGTM overall, the change seems reasonable. One comment in the testcase had me scratching my head though.

https://github.com/llvm/llvm-project/pull/70722