improved undefined reason for object method

Author: seborama

object.go

@@ -63,7 +63,7 @@ func ObjectGetMethod(obj Object, name string) (FunctionalValue, bool) { //nolint
 	value := reflect.ValueOf(obj)
 	if value.IsZero() || !value.IsValid() {
 		return func(...Value) Value {
-			return NewUndefinedWithReasonf("object is nil for type '%T' or does not have a method '%s'", obj, name)
+			return NewUndefinedWithReasonf("object is nil for type '%T' or does not have a method '%s' (check if it has a pointer receiver)", obj, name)
 		}, false
 	}
 

object_test.go

@@ -117,7 +117,7 @@ func TestObjectGetMethod(t *testing.T) {
 
 	val, ok := gal.ObjectGetMethod(nilCar, "Ignite")
 	require.False(t, ok)
-	assert.Equal(t, "undefined: object is nil for type '*gal_test.Car' or does not have a method 'Ignite'", val().String())
+	assert.Equal(t, "undefined: object is nil for type '*gal_test.Car' or does not have a method 'Ignite' (check if it has a pointer receiver)", val().String())
 
 	val, ok = gal.ObjectGetMethod(myCar, "DoesNotExist!")
 	require.False(t, ok)