[wasm] Data section without memory causes a validation error

src/wasm/wasm-module.h

Index: src/wasm/wasm-module.h
diff --git a/src/wasm/wasm-module.h b/src/wasm/wasm-module.h
index 4092958367b76a641c888fcdc02ed95b07cfc68c..a9d61fd71fead418ee80aef288cd2f5ee6f0a718 100644
--- a/src/wasm/wasm-module.h
+++ b/src/wasm/wasm-module.h
@@ -185,6 +185,7 @@ struct V8_EXPORT_PRIVATE WasmModule {
   const byte* module_end = nullptr;    // end address for the module bytes
   uint32_t min_mem_pages = 0;  // minimum size of the memory in 64k pages
   uint32_t max_mem_pages = 0;  // maximum size of the memory in 64k pages
+  bool has_memory = false;     // true if the memory was defined or imported
   bool mem_export = false;     // true if the memory is exported
   // TODO(wasm): reconcile start function index being an int with
   // the fact that we index on uint32_t, so we may technically not be