1. CI is failing because of public API baselines that I have now updated.
2. After some discussion with @mhegazy we decided to support the brace-free specification of types, to align with usejsdoc.org, even though this makes comments ambiguous in the Typescript scenario, where the type is not normally specified:

/** @this A - the type is 'A', the comment starts with '-' */
function f(this: number) {
}

However, @param already works for this scenario, so we expect @this to be used almost exclusively in Javascript.