[wasm] Names of exported functions should be the stringified function index.

src/wasm/wasm-objects.h

Index: src/wasm/wasm-objects.h
diff --git a/src/wasm/wasm-objects.h b/src/wasm/wasm-objects.h
index 1e8680289ecd97d4f2fbae062bbb9dd24d12b3d9..4bb3301ae153aff41b0e083b9f4c2b02d8ff7918 100644
--- a/src/wasm/wasm-objects.h
+++ b/src/wasm/wasm-objects.h
@@ -142,9 +142,9 @@ class WasmExportedFunction : public JSFunction {
 
   static Handle<WasmExportedFunction> New(Isolate* isolate,
                                           Handle<WasmInstanceObject> instance,
-                                          Handle<String> name,
-                                          Handle<Code> export_wrapper,
-                                          int arity, int func_index);
+                                          MaybeHandle<String> maybe_name,
+                                          int func_index, int arity,
+                                          Handle<Code> export_wrapper);
 };
 
 class WasmCompiledModule : public FixedArray {