deps: V8: cherry-pick c734674e03f9

Original commit message:

    [wasm][exnref] Fix null value for constant expressions

    Bug: v8:14398
    Change-Id: Ia00d2de97a897d608d6c043b6e267c7d6313a18b
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5402583
    Auto-Submit: Manos Koukoutos <[email protected]>
    Commit-Queue: Thibaud Michaud <[email protected]>
    Reviewed-by: Thibaud Michaud <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#93107}

Refs: v8/v8@c734674

Author: manoskouk

deps/v8/src/wasm/constant-expression-interface.cc

@@ -105,7 +105,8 @@ void ConstantExpressionInterface::RefNull(FullDecoder* decoder, ValueType type,
                                           Value* result) {
   if (!generate_value()) return;
   result->runtime_value =
-      WasmValue(type == kWasmExternRef || type == kWasmNullExternRef
+      WasmValue((IsSubtypeOf(type, kWasmExternRef, decoder->module_) ||
+                 IsSubtypeOf(type, kWasmExnRef, decoder->module_))
                     ? Handle<Object>::cast(isolate_->factory()->null_value())
                     : Handle<Object>::cast(isolate_->factory()->wasm_null()),
                 type);