ifx: -fuse-ld=lld and -fuse-ld=mold

[foxtran]

Dear,

Currently, ifx supports only ld, bfg and gold linkers:
```
-fuse-ld=<arg>
Use different linker instead of default linker (ld)
bfd - use bfd linker
gold - use gold linker
```

It would be nice to have well-parallelized linkers lld (from LLVM infrastructure) and mold (The Modern Linker from rui314) to link large applications faster.


Links:
- lld: https://github.com/llvm/llvm-project/tree/main/lld
- mold: https://github.com/rui314/mold/tree/main

The following results are taken from mold repo (https://github.com/rui314/mold/tree/main

[Barbara_P_Intel · Accepted solution]

lld is supported. See the Developer Guide and Reference (DGR). Not sure how it was missed in ifx -help. We'll get it fixed.

[foxtran]

Thanks!

[foxtran]

By the way, what is about mold?

[Barbara_P_Intel]

No plans for mold at this time.