src/vs/editor/common/cursor/cursorMoveOperations.ts/MoveOperations/clipPositionColumn
class MoveOperations:	private static clipPositionColumn(position: Position, model: ICursorSimpleModel): Position {
		return new Position(
			position.lineNumber,
			MoveOperations.clipRange(position.column, model.getLineMinColumn(position.lineNumber),
				model.getLineMaxColumn(position.lineNumber))
		);
	}