[lld] [wasm-ld] Refactor WasmSym from static globals to per-link context (PR #134970)

[Anutosh Bhat via llvm-commits]

anutosh491 wrote:

Hey @vgvassilev, 

Thanks for pushing this as I didn't hear much after the approvals. Could you please also apply a milestone label so that this is picked up for the next release.

Thanks again !

https://github.com/llvm/llvm-project/pull/134970