fix #121509 documentation error for two API command results

src/vs/workbench/api/common/extHostApiCommands.ts

@@ -30,13 +30,13 @@ const newCommands: ApiCommand[] = [
 	new ApiCommand(
 		'vscode.executeDocumentHighlights', '_executeDocumentHighlights', 'Execute document highlight provider.',
 		[ApiCommandArgument.Uri, ApiCommandArgument.Position],
-		new ApiCommandResult<modes.DocumentHighlight[], types.DocumentHighlight[] | undefined>('A promise that resolves to an array of SymbolInformation and DocumentSymbol instances.', tryMapWith(typeConverters.DocumentHighlight.to))
+		new ApiCommandResult<modes.DocumentHighlight[], types.DocumentHighlight[] | undefined>('A promise that resolves to an array of DocumentHighlight-instances.', tryMapWith(typeConverters.DocumentHighlight.to))
 	),
 	// -- document symbols
 	new ApiCommand(
 		'vscode.executeDocumentSymbolProvider', '_executeDocumentSymbolProvider', 'Execute document symbol provider.',
 		[ApiCommandArgument.Uri],
-		new ApiCommandResult<modes.DocumentSymbol[], vscode.SymbolInformation[] | undefined>('A promise that resolves to an array of DocumentHighlight-instances.', (value, apiArgs) => {
+		new ApiCommandResult<modes.DocumentSymbol[], vscode.SymbolInformation[] | undefined>('A promise that resolves to an array of SymbolInformation and DocumentSymbol instances.', (value, apiArgs) => {
 
 			if (isFalsyOrEmpty(value)) {
 				return undefined;