Custom error message not working

[KieranP]

Bug description

Using either:

class LocationOccupied extends Error {
  constructor(message: string) {
    super(`LocationOccupied(${message})`);
  }
}

OR

class LocationOccupied extends Error {
  constructor(message: string) {
    this.message = `LocationOccupied(${message})`;
  }
}

OR

class LocationOccupied extends Error {
  toString(): string {
    return `LocationOccupied(${this.message})`
  }
}

and calling this:

throw new LocationOccupied(`${x}-${y}`)

I'm not getting a custom message:

› wasmer run build/release.wasm
⠁ Compiling to WebAssembly                                                                                                                                                                                                                                  abort: 0-0 in assembly/world.ts(107:7)

› wasmtime run build/release.wasm
abort: 0-0 in assembly/world.ts(107:7)
Error: failed to run main module `build/release.wasm`

Notice only "0-0" is getting output, which is what is passed into the throw.

The change of the message in the custom error class doesn't apply.

Steps to reproduce

See above

AssemblyScript version

v0.28.9