[llvm] add: hidden option to disable slow wasm pass (PR #67715)

[Austin Theriault via llvm-commits]

ajbt200128 wrote:

I can investigate using the LLVM pass if that's preferable, but that feels more heavy handed to me so I'd be hesitant to. My use case for this flag is speeding up development builds, nothing production.

https://github.com/llvm/llvm-project/pull/67715