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

test/cctest/wasm/test-run-wasm-module.cc

Index: test/cctest/wasm/test-run-wasm-module.cc
diff --git a/test/cctest/wasm/test-run-wasm-module.cc b/test/cctest/wasm/test-run-wasm-module.cc
index 54f851bab5da914f004063287dced3d9352e3d51..4938408a1d924d39651eaff946e1f75016c87225 100644
--- a/test/cctest/wasm/test-run-wasm-module.cc
+++ b/test/cctest/wasm/test-run-wasm-module.cc
@@ -240,8 +240,8 @@ class WasmSerializationTest {
     ErrorThrower thrower(current_isolate(), "");
     v8::Local<v8::WasmCompiledModule> deserialized_module;
     CHECK(Deserialize().ToLocal(&deserialized_module));
-    Handle<JSObject> module_object =
-        Handle<JSObject>::cast(v8::Utils::OpenHandle(*deserialized_module));
+    Handle<WasmModuleObject> module_object = Handle<WasmModuleObject>::cast(
+        v8::Utils::OpenHandle(*deserialized_module));
     {
       DisallowHeapAllocation assume_no_gc;
       Handle<WasmCompiledModule> compiled_part(