[wasm] Do not unregister an ArrayBuffer if it is already external

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 45a209b1d439b6fb9e8aa29934d63994066bb952..9cbbca08b7be5e0468641e5360d0c9b5a44cf395 100644
--- a/src/wasm/wasm-module.h
+++ b/src/wasm/wasm-module.h
@@ -438,7 +438,8 @@ Handle<JSArrayBuffer> SetupArrayBuffer(Isolate*, void* backing_store,
                                        bool enable_guard_regions);
 
 void DetachWebAssemblyMemoryBuffer(Isolate* isolate,
-                                   Handle<JSArrayBuffer> buffer);
+                                   Handle<JSArrayBuffer> buffer,
+                                   bool free_memory);
 
 void UpdateDispatchTables(Isolate* isolate, Handle<FixedArray> dispatch_tables,
                           int index, Handle<JSFunction> js_function);