Just use `leftoverVisibleColumns` for having the cursor always go to the end of line

src/vs/editor/common/controller/cursorCommon.ts

@@ -277,21 +277,18 @@ export class SingleCursorState {
 	public readonly position: Position;
 	public readonly leftoverVisibleColumns: number;
 	public readonly selection: Selection;
-	public readonly isEnd: boolean;
 
 	constructor(
 		selectionStart: Range,
 		selectionStartLeftoverVisibleColumns: number,
 		position: Position,
 		leftoverVisibleColumns: number,
-		isEnd: boolean = false
 	) {
 		this.selectionStart = selectionStart;
 		this.selectionStartLeftoverVisibleColumns = selectionStartLeftoverVisibleColumns;
 		this.position = position;
 		this.leftoverVisibleColumns = leftoverVisibleColumns;
 		this.selection = SingleCursorState._computeSelection(this.selectionStart, this.position);
-		this.isEnd = isEnd;
 	}
 
 	public equals(other: SingleCursorState) {
@@ -307,15 +304,14 @@ export class SingleCursorState {
 		return (!this.selection.isEmpty() || !this.selectionStart.isEmpty());
 	}
 
-	public move(inSelectionMode: boolean, lineNumber: number, column: number, leftoverVisibleColumns: number, isEnd: boolean = false): SingleCursorState {
+	public move(inSelectionMode: boolean, lineNumber: number, column: number, leftoverVisibleColumns: number): SingleCursorState {
 		if (inSelectionMode) {
 			// move just position
 			return new SingleCursorState(
 				this.selectionStart,
 				this.selectionStartLeftoverVisibleColumns,
 				new Position(lineNumber, column),
-				leftoverVisibleColumns,
-				isEnd
+				leftoverVisibleColumns
 			);
 		} else {
 			// move everything
@@ -323,8 +319,7 @@ export class SingleCursorState {
 				new Range(lineNumber, column, lineNumber, column),
 				leftoverVisibleColumns,
 				new Position(lineNumber, column),
-				leftoverVisibleColumns,
-				isEnd
+				leftoverVisibleColumns
 			);
 		}
 	}

src/vs/editor/common/controller/cursorMoveOperations.ts

@@ -7,6 +7,7 @@ import { CursorColumns, CursorConfiguration, ICursorSimpleModel, SingleCursorSta
 import { Position } from 'vs/editor/common/core/position';
 import { Range } from 'vs/editor/common/core/range';
 import * as strings from 'vs/base/common/strings';
+import { Constants } from 'vs/base/common/uint';
 
 export class CursorPosition {
 	_cursorPositionBrand: void;
@@ -122,13 +123,9 @@ export class MoveOperations {
 			column = cursor.position.column;
 		}
 
-		if (cursor.isEnd) {
-			column = model.getLineMaxColumn(lineNumber + 1);
-		}
-
 		let r = MoveOperations.down(config, model, lineNumber, column, cursor.leftoverVisibleColumns, linesCount, true);
 
-		return cursor.move(inSelectionMode, r.lineNumber, cursor.isEnd ? column : r.column, r.leftoverVisibleColumns, cursor.isEnd);
+		return cursor.move(inSelectionMode, r.lineNumber, r.column, r.leftoverVisibleColumns);
 	}
 
 	public static translateDown(config: CursorConfiguration, model: ICursorSimpleModel, cursor: SingleCursorState): SingleCursorState {
@@ -178,13 +175,9 @@ export class MoveOperations {
 			column = cursor.position.column;
 		}
 
-		if (cursor.isEnd) {
-			column = model.getLineMaxColumn(lineNumber - 1);
-		}
-
 		let r = MoveOperations.up(config, model, lineNumber, column, cursor.leftoverVisibleColumns, linesCount, true);
 
-		return cursor.move(inSelectionMode, r.lineNumber, cursor.isEnd ? column : r.column, r.leftoverVisibleColumns, cursor.isEnd);
+		return cursor.move(inSelectionMode, r.lineNumber, r.column, r.leftoverVisibleColumns);
 	}
 
 	public static translateUp(config: CursorConfiguration, model: ICursorSimpleModel, cursor: SingleCursorState): SingleCursorState {
@@ -222,7 +215,7 @@ export class MoveOperations {
 	public static moveToEndOfLine(config: CursorConfiguration, model: ICursorSimpleModel, cursor: SingleCursorState, inSelectionMode: boolean): SingleCursorState {
 		let lineNumber = cursor.position.lineNumber;
 		let maxColumn = model.getLineMaxColumn(lineNumber);
-		return cursor.move(inSelectionMode, lineNumber, maxColumn, 0, true);
+		return cursor.move(inSelectionMode, lineNumber, maxColumn, Constants.MAX_SAFE_SMALL_INTEGER - maxColumn);
 	}
 
 	public static moveToBeginningOfBuffer(config: CursorConfiguration, model: ICursorSimpleModel, cursor: SingleCursorState, inSelectionMode: boolean): SingleCursorState {

src/vs/editor/common/controller/oneCursor.ts

@@ -99,7 +99,7 @@ export class OneCursor {
 			);
 			const leftoverVisibleColumns = modelState.position.equals(position) ? modelState.leftoverVisibleColumns : 0;
 
-			modelState = new SingleCursorState(selectionStart, selectionStartLeftoverVisibleColumns, position, leftoverVisibleColumns, modelState.isEnd);
+			modelState = new SingleCursorState(selectionStart, selectionStartLeftoverVisibleColumns, position, leftoverVisibleColumns);
 		}
 
 		if (!viewState) {
@@ -108,12 +108,12 @@ export class OneCursor {
 			const viewSelectionStart2 = context.convertModelPositionToViewPosition(new Position(modelState.selectionStart.endLineNumber, modelState.selectionStart.endColumn));
 			const viewSelectionStart = new Range(viewSelectionStart1.lineNumber, viewSelectionStart1.column, viewSelectionStart2.lineNumber, viewSelectionStart2.column);
 			const viewPosition = context.convertModelPositionToViewPosition(modelState.position);
-			viewState = new SingleCursorState(viewSelectionStart, modelState.selectionStartLeftoverVisibleColumns, viewPosition, modelState.leftoverVisibleColumns, modelState.isEnd);
+			viewState = new SingleCursorState(viewSelectionStart, modelState.selectionStartLeftoverVisibleColumns, viewPosition, modelState.leftoverVisibleColumns);
 		} else {
 			// Validate new view state
 			const viewSelectionStart = context.validateViewRange(viewState.selectionStart, modelState.selectionStart);
 			const viewPosition = context.validateViewPosition(viewState.position, modelState.position);
-			viewState = new SingleCursorState(viewSelectionStart, modelState.selectionStartLeftoverVisibleColumns, viewPosition, modelState.leftoverVisibleColumns, viewState.isEnd);
+			viewState = new SingleCursorState(viewSelectionStart, modelState.selectionStartLeftoverVisibleColumns, viewPosition, modelState.leftoverVisibleColumns);
 		}
 
 		this.modelState = modelState;