Fixes microsoft#191664

Author: hediet

src/vs/editor/browser/widget/diffEditorWidget2/unchangedRanges.ts

@@ -94,7 +94,7 @@ export class UnchangedRangesFeature extends Disposable {
 					const d = derived(reader => /** @description hiddenOriginalRangeStart */ r.getHiddenOriginalRange(reader).startLineNumber - 1);
 					const origVz = new PlaceholderViewZone(d, 24);
 					origViewZones.push(origVz);
-					store.add(new CollapsedCodeOverlayWidget(this._editors.original, origVz, r, r.originalRange, !sideBySide, modifiedOutlineSource, l => this._diffModel.get()!.ensureOriginalLineIsVisible(l, undefined), this._options));
+					store.add(new CollapsedCodeOverlayWidget(this._editors.original, origVz, r, r.originalRange, !sideBySide, modifiedOutlineSource, l => this._diffModel.get()!.ensureModifiedLineIsVisible(l, undefined), this._options));
 				}
 				{
 					const d = derived(reader => /** @description hiddenModifiedRangeStart */ r.getHiddenModifiedRange(reader).startLineNumber - 1);
@@ -265,7 +265,7 @@ class CollapsedCodeOverlayWidget extends ViewZoneOverlayWidget {
 		private readonly _unchangedRegionRange: LineRange,
 		private readonly hide: boolean,
 		private readonly _modifiedOutlineSource: OutlineSource,
-		private readonly _revealHiddenLine: (lineNumber: number) => void,
+		private readonly _revealModifiedHiddenLine: (lineNumber: number) => void,
 		private readonly _options: DiffEditorOptions,
 	) {
 		const root = h('div.diff-hidden-lines-widget');
@@ -396,7 +396,7 @@ class CollapsedCodeOverlayWidget extends ViewZoneOverlayWidget {
 						]).root;
 						children.push(divItem);
 						divItem.onclick = () => {
-							this._revealHiddenLine(item.startLineNumber);
+							this._revealModifiedHiddenLine(item.startLineNumber);
 						};
 					}
 				}