src/vs/editor/common/cursor/cursorMoveCommands.ts/CursorMoveCommands/moveToBeginningOfLine
class CursorMoveCommands:	public static moveToBeginningOfLine(viewModel: IViewModel, cursors: CursorState[], inSelectionMode: boolean): PartialCursorState[] {
		let result: PartialCursorState[] = [];
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			result[i] = this._moveToLineStart(viewModel, cursor, inSelectionMode);
		}

		return result;
	}