[wasm] JS-API: enable WebAssembly.instantiate tests; fix LinkError

src/asmjs/asm-js.cc

 // 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.
 
 #include "src/asmjs/asm-js.h"
 
 #include "src/api-natives.h"
 #include "src/api.h"
 #include "src/asmjs/asm-typer.h"
 #include "src/asmjs/asm-wasm-builder.h"
@@ skipping 236 matching lines @@
   }
   return true;
 }
 
 MaybeHandle<Object> AsmJs::InstantiateAsmWasm(i::Isolate* isolate,
                                               Handle<FixedArray> wasm_data,
                                               Handle<JSArrayBuffer> memory,
                                               Handle<JSReceiver> foreign) {
   base::ElapsedTimer instantiate_timer;
   instantiate_timer.Start();
-  i::Handle<i::JSObject> module(
-      i::JSObject::cast(wasm_data->get(kWasmDataCompiledModule)));
+  i::Handle<i::WasmModuleObject> module(
+      i::WasmModuleObject::cast(wasm_data->get(kWasmDataCompiledModule)));
   i::Handle<i::FixedArray> foreign_globals(
       i::FixedArray::cast(wasm_data->get(kWasmDataForeignGlobals)));
 
   ErrorThrower thrower(isolate, "Asm.js -> WebAssembly instantiation");
 
   // Create the ffi object for foreign functions {"": foreign}.
   Handle<JSObject> ffi_object;
   if (!foreign.is_null()) {
     Handle<JSFunction> object_function = Handle<JSFunction>(
         isolate->native_context()->object_function(), isolate);
@@ skipping 72 matching lines @@
       isolate, MessageTemplate::kAsmJsInstantiated, &location, stext,
       Handle<JSArray>::null());
   message->set_error_level(v8::Isolate::kMessageInfo);
   MessageHandler::ReportMessage(isolate, &location, message);
 
   return module_object;
 }
 
 }  // namespace internal
 }  // namespace v8