Implicitly inherit from Object

[dcodeIO]

Classes that are not unmanaged and don't extend other classes now implicitly extend Object. As a result, the type Object can be used to reference and pass along any normal class instance.

let obj: Object = new Anything();

function fn(arg: Object): void {
  if (arg instanceof Anything) {
    ...
  }
}
fn(new Anything());

Note: Does not apply to basic value types like i32, which are not objects.

With Object becoming the general base class, a breaking change to constant class ids was necessary, in that foundational classes move one up. Relevant for external integration with the runtime, where these ids may be hardcoded.

Class	New id	Old id
Object	0	dynamic
ArrayBuffer	1	0
String	2	1
...

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[jtenner]

Thank you for this! I was able to test the branch with as-pect and it works after I made some coding changes. I also needed to use the new loader because the runtime type ids changed. Other than that, everything looks good to me!