[lld] [LLD] [Build Issue] Ubuntu24 build failure due to LLD's COFF regression (PR #98447)

[Vikash Gupta via llvm-commits]

vg0204 wrote:

As mentioned in your commit, it really solves the problem. The regression failure can be reliably observed when isUsedDefinedInRegObj bit is zero-intialized in all builds (Ubuntu24 & below) and also identical in nature. Now, if this patch is applied on top of the zero intialization, the issue gets resolved for all builds. Exactly both of this is being done in your mentioned commit, thus exposing & solving the problem uniformly across different Ubuntu builds. 

https://github.com/llvm/llvm-project/pull/98447