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

[Heejin Ahn via llvm-commits]

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@@ -127,6 +127,7 @@ WebAssemblyTargetMachine::WebAssemblyTargetMachine(
   // LLVM 'unreachable' to ISD::TRAP and then lower that to WebAssembly's
   // 'unreachable' instructions which is meant for that case.
   this->Options.TrapUnreachable = true;
+  this->Options.NoTrapAfterNoreturn = false;
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aheejin wrote:

Why is this a bugfix? (You said this is an actual bugfix in https://github.com/llvm/llvm-project/pull/65876/files#r1322760404) This option is false by default and since we haven't overridden it, it has been false so far. What effect does this line have then?

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