[llvm] Ensure NoTrapAfterNoreturn is false for the wasm backend (PR #65876)

[Heejin Ahn via llvm-commits]

https://github.com/aheejin commented:

Haven't read the code yet, but I wonder, why can't we turn `NoTrapAfterNoreturn` on?

https://github.com/llvm/llvm-project/pull/65876