Fix TreeView Mouse Hover Persistence (microsoft#205970)

* fix treeview mouse hover persistence

* fix persistence

Author: benibenj

src/vs/workbench/browser/parts/views/treeView.ts

@@ -62,7 +62,7 @@ import { PANEL_BACKGROUND, SIDE_BAR_BACKGROUND } from 'vs/workbench/common/theme
 import { Extensions, ITreeItem, ITreeItemLabel, ITreeView, ITreeViewDataProvider, ITreeViewDescriptor, ITreeViewDragAndDropController, IViewBadge, IViewDescriptorService, IViewsRegistry, ResolvableTreeItem, TreeCommand, TreeItemCollapsibleState, TreeViewItemHandleArg, TreeViewPaneHandleArg, ViewContainer, ViewContainerLocation } from 'vs/workbench/common/views';
 import { IActivityService, NumberBadge } from 'vs/workbench/services/activity/common/activity';
 import { IExtensionService } from 'vs/workbench/services/extensions/common/extensions';
-import { IHoverService } from 'vs/platform/hover/browser/hover';
+import { IHoverService, WorkbenchHoverDelegate } from 'vs/platform/hover/browser/hover';
 import { ITreeViewsService } from 'vs/workbench/services/views/browser/treeViewsService';
 import { CodeDataTransfers, LocalSelectionTransfer } from 'vs/platform/dnd/browser/dnd';
 import { toExternalVSDataTransfer } from 'vs/editor/browser/dnd';
@@ -73,7 +73,6 @@ import { TelemetryTrustedValue } from 'vs/platform/telemetry/common/telemetryUti
 import { ITreeViewsDnDService } from 'vs/editor/common/services/treeViewsDndService';
 import { DraggedTreeItemsIdentifier } from 'vs/editor/common/services/treeViewsDnd';
 import { IMarkdownRenderResult, MarkdownRenderer } from 'vs/editor/browser/widget/markdownRenderer/browser/markdownRenderer';
-import { getDefaultHoverDelegate } from 'vs/base/browser/ui/hover/hoverDelegate';
 
 export class TreeViewPane extends ViewPane {
 
@@ -1104,9 +1103,10 @@ class TreeRenderer extends Disposable implements ITreeRenderer<ITreeItem, FuzzyS
 		@ILabelService private readonly labelService: ILabelService,
 		@ITreeViewsService private readonly treeViewsService: ITreeViewsService,
 		@IContextKeyService private readonly contextKeyService: IContextKeyService,
+		@IInstantiationService instantiationService: IInstantiationService,
 	) {
 		super();
-		this._hoverDelegate = getDefaultHoverDelegate('mouse');
+		this._hoverDelegate = instantiationService.createInstance(WorkbenchHoverDelegate, 'mouse', false, { persistence: undefined /* use default persistence behaviour */ });
 		this._register(this.themeService.onDidFileIconThemeChange(() => this.rerender()));
 		this._register(this.themeService.onDidColorThemeChange(() => this.rerender()));
 		this._register(checkboxStateHandler.onDidChangeCheckboxState(items => {