message: wasm: import functions from the module before starting VM.
  This prevents a nullptr-dereference when global constructors
  call host function which calls module function (e.g. malloc).
diff: @@ -1491,6 +1491,7 @@ bool Wasm::initialize(const std::string& code, absl::string_view name, bool allo
  establishEnvironment();
  wasm_vm_->link(name, is_emscripten_);
  general_context_ = createContext();
  + getFunctions();
  wasm_vm_->start(general_context_.get());
  if (is_emscripten_) {
  ASSERT(std::isnan(emscripten_NaN_->get()));
  @@ -1498,7 +1499,6 @@ bool Wasm::initialize(const std::string& code, absl::string_view name, bool allo
  }
  code_ = code;
  allow_precompiled_ = allow_precompiled;
  - getFunctions();
  return true;
  }
  