fixes #89472

src/vs/workbench/contrib/debug/browser/callStackView.ts

@@ -523,7 +523,7 @@ class StackFramesRenderer implements ITreeRenderer<IStackFrame, FuzzyScore, ISta
 		dom.toggleClass(data.stackFrame, 'disabled', !stackFrame.source || !stackFrame.source.available || isDeemphasized(stackFrame));
 		dom.toggleClass(data.stackFrame, 'label', stackFrame.presentationHint === 'label');
 		dom.toggleClass(data.stackFrame, 'subtle', stackFrame.presentationHint === 'subtle');
-		const hasActions = !!stackFrame.thread.session.capabilities.supportsRestartFrame && stackFrame.presentationHint !== 'label' && stackFrame.presentationHint !== 'subtle' && stackFrame.range.startLineNumber !== undefined;
+		const hasActions = !!stackFrame.thread.session.capabilities.supportsRestartFrame && stackFrame.presentationHint !== 'label' && stackFrame.presentationHint !== 'subtle';
 		dom.toggleClass(data.stackFrame, 'has-actions', hasActions);
 
 		data.file.title = stackFrame.source.inMemory ? stackFrame.source.uri.path : this.labelService.getUriLabel(stackFrame.source.uri);

src/vs/workbench/contrib/debug/browser/media/debugViewlet.css

@@ -92,7 +92,6 @@
 	border-radius: 2px;
 	font-size: 0.9em;
 	padding: 0 3px;
-	margin-left: 0.8em;
 	line-height: 20px;
 }
 
@@ -174,12 +173,7 @@
 }
 
 .debug-viewlet .debug-call-stack .monaco-list-row:hover .stack-frame.has-actions .file .line-number {
-	visibility: hidden;
-}
-
-.debug-viewlet .debug-call-stack .monaco-list-row:hover .stack-frame.has-actions .monaco-action-bar {
-	position: absolute;
-	right: 2px;
+	display: none;
 }
 
 .debug-viewlet .debug-call-stack .monaco-list-row .monaco-action-bar {
@@ -250,6 +244,7 @@
 .debug-viewlet .debug-call-stack .stack-frame > .file > .file-name {
 	overflow: hidden;
 	text-overflow: ellipsis;
+	margin-right: 0.8em;
 }
 
 .vs-dark .debug-viewlet .debug-call-stack .monaco-list-row:not(.selected) .stack-frame > .file {