Feeback required for upcoming release 0.10.0

[konsoletyper]

Hi!

I'm glad to announce that release 0.10.0 is to come soon. I implemented all the features I planned and now I only need your feedback. So if it's possible, please, try latest developer preview (0.10.0-dev-12) and tell if you had some issues.

The most notable features of upcoming release are:

• Strings are represented by thin wrappers around JavaScript strings, which allows to improve performance in several operations and in interoperability between Java and JS
• JS backend was refactored to improve code generation, which allows to decrease generated code size
• JS backend produces ES6 code
• Gradle supports dev server (see new tasks javaScriptDevServer and stopJavaScriptDevServer
• Allow to generate JS modules (see documentation)
• JSO classes can now be represented by non-abstract classes. In this case additional @JSClass annotation required on class. To represent member methods, native methods can be used instead of abstract. This allows to map JS to Java constructors and JS static methods. @JSModule annotation can be specified for class to indicate that class should be imported from given module, not taken from global context.
• Vararg methods are supported in JSO
• instanceof now works properly for JSO classes, as well as casts. This only works for classes, not for interfaces. To turn off instanceof for particular class, add @JSClass(transparent = true)
• @JSPrimitiveType can be used to map Java class to JS primitive (this affects instanceof and casts)
• @JSTopLevel annotation can be applied to static methods to indicate that they aren't mapped to JS static methods, but rather to global scope. @JSTopLevel can be combined with @JSModule to import functions from modules.
• Changes in built-in JSO declarations according to improvements in JSO

[SquidDev]

Just updated to the latest version, and it appears to be working perfectly for me. Thank you for your hard work, the support for ESM is so useful! ❤️