[wasm] Support for restricted table imports.

src/wasm/wasm-js.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_WASM_JS_H_
 #define V8_WASM_JS_H_
 
 #include "src/allocation.h"
 #include "src/base/hashmap.h"
 
 namespace v8 {
 namespace internal {
 // Exposes a WASM API to JavaScript through the V8 API.
 class WasmJs {
  public:
   static void Install(Isolate* isolate, Handle<JSGlobalObject> global_object);
 
   V8_EXPORT_PRIVATE static void InstallWasmModuleSymbolIfNeeded(
       Isolate* isolate, Handle<JSGlobalObject> global, Handle<Context> context);
 
   V8_EXPORT_PRIVATE static void InstallWasmMapsIfNeeded(
       Isolate* isolate, Handle<Context> context);
   static void InstallWasmConstructors(Isolate* isolate,
                                       Handle<JSGlobalObject> global,
                                       Handle<Context> context);
 
+  // WebAssembly.Table.
+  static Handle<JSObject> CreateWasmTableObject(
+      Isolate* isolate, uint32_t initial, bool has_maximum, uint32_t maximum,
+      Handle<FixedArray>* js_functions);
+
+  static bool IsWasmTableObject(Isolate* isolate, Handle<Object> value);
+
+  static Handle<FixedArray> GetWasmTableFunctions(Isolate* isolate,
+                                                  Handle<JSObject> object);
+
+  static Handle<FixedArray> AddWasmTableDispatchTable(
+      Isolate* isolate, Handle<JSObject> table_obj, Handle<JSObject> instance,
+      int table_index, Handle<FixedArray> dispatch_table);
+
+  // WebAssembly.Memory
   static Handle<JSObject> CreateWasmMemoryObject(Isolate* isolate,
                                                  Handle<JSArrayBuffer> buffer,
                                                  bool has_maximum, int maximum);
 
-  static Handle<JSObject> CreateWasmTableObject(Isolate* isolate,
-                                                uint32_t initial,
-                                                bool has_maximum,
-                                                uint32_t maximum,
-                                                Handle<FixedArray>* array);
-
   static bool IsWasmMemoryObject(Isolate* isolate, Handle<Object> value);
 
   static Handle<JSArrayBuffer> GetWasmMemoryArrayBuffer(Isolate* isolate,
                                                         Handle<Object> value);
 
   static void SetWasmMemoryArrayBuffer(Isolate* isolate, Handle<Object> value,
                                        Handle<JSArrayBuffer> buffer);
 
   static uint32_t GetWasmMemoryMaximumSize(Isolate* isolate,
                                            Handle<Object> value);
 
   static void SetWasmMemoryInstance(Isolate* isolate, Handle<Object> value,
                                     Handle<JSObject> instance);
 };
 
 }  // namespace internal
 }  // namespace v8
 #endif