[REG 5.9 -> 5.11] qtquickcompiler breaks JS .import statements

Hello,

When trying to upgrade from Qt 5.9 to Qt 5.11, with qtquickcompiler enabled, I faced a strange situation where the following code does not work properly:

.pragma library
.import "TimerFactory.js" as Timers

// ...

            Timers.setTimeout(function() {
                resolve(arguments)
            }, value.__delay);

It gives the error "ReferenceError: Timers is not defined".

I don't have this error when I disable qtquickcompiler. I still have it when I change the import to have a full path with "qrc:///" for example.

Any idea?
Regards,
Louis