src/vs/editor/browser/coreCommands.ts/CursorMoveImpl/runCoreEditorCommand
class CursorMoveImpl:		public runCoreEditorCommand(viewModel: IViewModel, args: any): void {
			const parsed = CursorMove_.parse(args);
			if (!parsed) {
				// illegal arguments
				return;
			}
			this._runCursorMove(viewModel, args.source, parsed);
		}