align doc with reality, #69372

src/vs/vscode.d.ts

@@ -2681,7 +2681,7 @@ declare module 'vscode' {
 		 * [location](#SymbolInformation.location)-objects, without a `range` defined. The editor will then call
 		 * `resolveWorkspaceSymbol` for selected symbols only, e.g. when opening a workspace symbol.
 		 *
-		 * @param query A non-empty query string.
+		 * @param query A query string, can be the empty string in which case all symbols should be returned.
 		 * @param token A cancellation token.
 		 * @return An array of document highlights or a thenable that resolves to such. The lack of a result can be
 		 * signaled by returning `undefined`, `null`, or an empty array.