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

[Derek Schuff via llvm-commits]

dschuff wrote:

Generally speaking I think it's better for most purposes to have things be section-relative rather than file-relative anyway. You don't have to worry about changes to the known sections or custom sections like the dylink section that come before the code section affecting anything else.

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