src/vs/workbench/contrib/debug/browser/debugService.ts/DebugService/state
class DebugService:	get state(): State {
		const focusedSession = this.viewModel.focusedSession;
		if (focusedSession) {
			return focusedSession.state;
		}

		return this.initializing ? State.Initializing : State.Inactive;
	}