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

[Matt Harding via llvm-commits]

majaha wrote:

Do you mean that there should be a test that checks that the `--no-trap-after-noreturn` command line option actually enables the behaviour it's supposed to?

Would that be a unit test, or an llvm-lit style test? Where might that test live?

After a quick search the closest thing I could find for `--trap-unreachable` is this: https://github.com/llvm/llvm-project/blob/116f7a2dcb86a7a8812a60fb7101f90329dada19/llvm/test/CodeGen/ARM/trap-unreachable.ll
which tests the effect on the ARM backend. There's also one for the Hexagon backend. Is this the kind of test you had in mind?

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