Fix issues

Author: kunitoki

modules/yup_core/containers/yup_Variant.cpp

@@ -1231,6 +1231,11 @@ var var::readFromStream (InputStream& input)
     return {};
 }
 
+var::NativeFunctionArgs::NativeFunctionArgs (const var& t) noexcept
+    : NativeFunctionArgs (t, nullptr, 0)
+{
+}
+
 var::NativeFunctionArgs::NativeFunctionArgs (const var& t, const var* args, int numArgs) noexcept
     : thisObject (t)
     , arguments (args)

modules/yup_core/containers/yup_Variant.h

@@ -64,6 +64,7 @@ class YUP_API var
     */
     struct YUP_API NativeFunctionArgs
     {
+        NativeFunctionArgs (const var& thisObject) noexcept;
         NativeFunctionArgs (const var& thisObject, const var* args, int numArgs) noexcept;
 
         const var& thisObject;

tests/yup_core/yup_JavascriptEngine.cpp

@@ -897,9 +897,8 @@ TEST (JavascriptEngineTests, CallFunctionObject)
     engine.execute ("function getValue() { return this.value; }");
     var funcObject = engine.getRootObjectProperties()["getValue"];
 
-    var args[] = {};
     Result result = Result::fail ("wrong");
-    var returnValue = engine.callFunctionObject (scope, funcObject, var::NativeFunctionArgs (scope.get(), args, 0), &result);
+    var returnValue = engine.callFunctionObject (scope, funcObject, var::NativeFunctionArgs (scope.get()), &result);
 
     EXPECT_TRUE (result.wasOk());
     EXPECT_EQ (42, (int) returnValue);