[lld] wasm-ld: Implement function pointer alignment (PR #105532)

[Sam Clegg via llvm-commits]

sbc100 wrote:

I would just build a simple example that makes a single indirect call to an empty function.   It should be obivous from the disassembly if its address in the table is wrong. 

https://github.com/llvm/llvm-project/pull/105532