[llvm-branch-commits] [llvm] [llvm-objcopy] Support CREL (PR #97521)

[Fangrui Song via llvm-branch-commits]

MaskRay wrote:

> Is it worth a test to show a user attempting to strip a symbol referenced by a crel section? Similarly, a crel section that is associated with a section that gets stripped? Perhaps not needed, but just a thought.

This case is tested by `strip-reloc-symbol.test`. I've also duplicated some SHT_REL tests in reloc-error-remove-symtab.test

https://github.com/llvm/llvm-project/pull/97521