debug: fix pause action

also fixes #71198

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

@@ -149,7 +149,19 @@ export function registerCommands(): void {
 		primary: KeyCode.F6,
 		when: CONTEXT_DEBUG_STATE.isEqualTo('running'),
 		handler: (accessor: ServicesAccessor, _: string, thread: IThread | undefined) => {
-			getThreadAndRun(accessor, thread, thread => thread.pause());
+			const debugService = accessor.get(IDebugService);
+			if (!(thread instanceof Thread)) {
+				thread = debugService.getViewModel().focusedThread;
+				if (!thread) {
+					const session = debugService.getViewModel().focusedSession;
+					const threads = session && session.getAllThreads();
+					thread = threads && threads.length ? threads[0] : undefined;
+				}
+			}
+
+			if (thread) {
+				thread.pause().then(undefined, onUnexpectedError);
+			}
 		}
 	});
 

src/vs/workbench/contrib/debug/electron-browser/debug.contribution.ts

@@ -276,7 +276,7 @@ const registerDebugToolBarItem = (id: string, title: string, icon: string, order
 };
 
 registerDebugToolBarItem(CONTINUE_ID, continueLabel, 'continue', 10, CONTEXT_DEBUG_STATE.isEqualTo('stopped'));
-registerDebugToolBarItem(PAUSE_ID, pauseLabel, 'pause', 10, CONTEXT_DEBUG_STATE.notEqualsTo('stopped'), CONTEXT_DEBUG_STATE.isEqualTo('running'));
+registerDebugToolBarItem(PAUSE_ID, pauseLabel, 'pause', 10, CONTEXT_DEBUG_STATE.notEqualsTo('stopped'));
 registerDebugToolBarItem(STOP_ID, stopLabel, 'stop', 70, CONTEXT_FOCUSED_SESSION_IS_ATTACH.toNegated());
 registerDebugToolBarItem(DISCONNECT_ID, disconnectLabel, 'disconnect', 70, CONTEXT_FOCUSED_SESSION_IS_ATTACH);
 registerDebugToolBarItem(STEP_OVER_ID, stepOverLabel, 'step-over', 20, undefined, CONTEXT_DEBUG_STATE.isEqualTo('stopped'));