Instantiate the returned FileSystem object for the frontend binding

[slhultgren]

What it does

Fixes: #8497

• fixes issue @inject(FileSystem) will inject the type instead of the actual object #8497 by returning a new instance of the FileSystem class, instead of the class.

How to test

With this patch this following code will now work properly:

@inject(FileSystem)
protected readonly fileSystem: FileSystem;

...

console.log("fileSystem.exists: " + this.fileSystem.exists);
console.log("file system root exists ? " + await this.fileSystem.exists("file:///"));

Will now work as expected instead of this.fileSystem.exists being undefined.

Review checklist

• as an author, I have thoroughly tested my changes and carefully followed the review guidelines

Reminder for reviewers

• as a reviewer, I agree to behave in accordance with the review guidelines

Signed-off-by: Samuel HULTGREN [email protected]

[vince-fugnitto]

Thank you for your first contribution @slhultgren! 👍
The changes work well for me when attempting to use the deprecated FileSystem.