[llvm] [WebAssembly][Object]Use file offset as function symbol address for linked files (PR #76198)

[Derek Schuff via llvm-commits]

dschuff wrote:

Sorry, we raced.
If we did this for relocatable objects, I think the linker relies on this address being a section offset? I haven't tried it though.

https://github.com/llvm/llvm-project/pull/76198