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

[Anutosh Bhat via llvm-commits]

anutosh491 wrote:

If we want to go the much simpler route where we don't introduce anything in ctx, we can probably just reset the existing static globals in WasmSym to nullptr before each link. Something like this 

https://github.com/anutosh491/llvm-project/pull/1/files (made the changes in my local fork as an alternative)


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