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

[Heejin Ahn via llvm-commits]

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@@ -71,8 +67,8 @@ declare void @ext_func()
 declare i32 @ext_func_i32()
 declare void @ext_never_return() noreturn
 
-; This test emits wasm unreachable to fill in for the missing i32 return value,
-; which is necessary for the function to pass wasm validation.
+; The wasm unreachable in this test is necessary for the function to pass wasm
+; validation.
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aheejin wrote:

```suggestion
; LLVM IR's 'unreachable' is translated to Wasm 'unreachable'.
```

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