[MLIR][tblgen] Honor `-dialect` in `-gen-{attrdef,op,typedef,enum}-doc` (#182183)
Make all dialect documentation generators use the same set of records as
`-gen-dialect-doc`, which honors the `-dialect` tblgen option to filter
records by dialect. Add a `-keep-op-source-order` option to allow
`-gen-op-doc` to continue producing unsorted op lists if needed.
This commit factors the record collection, filtering, and sorting
performed in `emitDialectDoc` out into a separate `collectRecords`
function, returning a `DialectRecords` with the results. The emit
functions now all accept a `DialectRecords` argument instead of
collecting records themselves. Most changes are mechanical renamings and
moving code around.
This fixes a confusing issue where `gen-dialect-doc` would produce the
entire documentation for a dialect, but individual calls to
`gen-attrdef-doc` and the like would seemingly operate on a different
set of records, potentially covering multiple dialects. This all produce
the overall documentation now.