untitled - fix title for labels (#89921)

src/vs/workbench/browser/labels.ts

@@ -353,7 +353,7 @@ class ResourceLabelWidget extends IconLabel {
 		this.setResource({ resource, name, description }, options);
 	}
 
-	setResource(label: IResourceLabelProps, options?: IResourceLabelOptions): void {
+	setResource(label: IResourceLabelProps, options: IResourceLabelOptions = Object.create(null)): void {
 		if (label.resource?.scheme === Schemas.untitled) {
 			// Untitled labels are very dynamic because they may change
 			// whenever the content changes (unless a path is associated).
@@ -369,19 +369,20 @@ class ResourceLabelWidget extends IconLabel {
 				}
 
 				if (typeof label.description === 'string') {
-					let untitledDescription: string;
-					if (untitledModel.hasAssociatedFilePath) {
-						untitledDescription = this.labelService.getUriLabel(dirname(untitledModel.resource), { relative: true });
-					} else {
-						untitledDescription = untitledModel.resource.path;
-					}
-
+					let untitledDescription = untitledModel.resource.path;
 					if (label.name !== untitledDescription) {
 						label.description = untitledDescription;
 					} else if (label.description === posix.sep) {
 						label.description = undefined; // unset showing just "/" for untitled without associated resource
 					}
 				}
+
+				let untitledTitle = untitledModel.resource.path;
+				if (untitledModel.name !== untitledTitle) {
+					options.title = `${untitledModel.name} • ${untitledTitle}`;
+				} else {
+					options.title = untitledTitle;
+				}
 			}
 		}
 

src/vs/workbench/test/browser/parts/editor/editorDiffModel.test.ts

@@ -13,6 +13,7 @@ import { ITextModel } from 'vs/editor/common/model';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 
 suite('Workbench editor model', () => {
+
 	let instantiationService: IInstantiationService;
 	let accessor: TestServiceAccessor;
 

src/vs/workbench/test/browser/parts/editor/resourceEditorInput.test.ts

@@ -13,6 +13,7 @@ import { snapshotToString } from 'vs/workbench/services/textfile/common/textfile
 import { ModesRegistry, PLAINTEXT_MODE_ID } from 'vs/editor/common/modes/modesRegistry';
 
 suite('Resource text editors', () => {
+
 	let instantiationService: IInstantiationService;
 	let accessor: TestServiceAccessor;