message: add emit to resolvers
diff: @@ -578,6 +578,7 @@ export type PlaceholderResolverParams = {
  baseUrl: string;
  read: PlaceholderResolverRead;
  resolveUrl: PlaceholderResolverResolveUrl;
  + emit: CatalogProcessorEmit;
  };
  // @public (undocumented)
  