[lld] [llvm] [llvm][lld] Respect temporal profile weights in balanced partitioning (PR #213837)

[Karim Alweheshy via llvm-commits]

karim-alweheshy wrote:

@ellishg @spupyrev, could you please take a look? This revives the weighted-utility support from #72717 (reverted only for its MSVC test failure), wires it through the current llvm-profdata and common ELF/Mach-O lld consumers, and adds weighted-vs-explicit-replication controls for each path. Thanks!

https://github.com/llvm/llvm-project/pull/213837