Added information about the properties of the results of API calls
to action=paraminfo, including information about "property groups":
what should the prop parameter be set to to get that property.
Uses the same format for types as parameters already do.
The output format of some modules doesn't fit this, so the result
properties for them weren't added, or only partially.
Partially implemented modules:
* expandtemplates:
parsetree is in its own tag
* protect, allusers, backlinks, deletedrevs, info, imageinfo,
logevents, querypage, recentchanges, revisions, searchinfo,
usercontribs, userinfo, users, watchlist, upload:
response with partially complex structure
Not implemented modules:
* feedcontributions, feedwatchlist, opensearch, rds:
non-standard reponse
* help:
error is normal response; not very useful for automated tools anyway
* paraminfo, parse, pageprops, siteinfo, userrights:
response with complex structure
Change-Id: Iff2a9bef79f994e73eef3062b4dd5461bff968ab
It's a parctice that dates back to 2006 when the API was first written, and frankly isn't covered by the coding conventions. Same thing with the docblocks, they're all copypasted with some bits changed and don't even make sense if you look at them in the genereated code docs.
I don't feel that any of us depend on this anymore (get a better IDE), so in the inerest of consistancy it's time we said goodbye to it.
Further changes:
* Added Status::getErrorsByType() which returns the internal error array untouched
* Added ApiResult::convertStatusToArray() which converts a Status object to something useful for the Api
