fn generate_lint_descriptor(sh: &Shell, buf: &mut String)Expand description
Parses the output of rustdoc -Whelp and prints Lint and LintGroup constants into buf.
As of writing, the output of rustc -Whelp (not rustdoc) has the following format:
Lint checks provided by rustc:
name default meaning
---- ------- -------
...
Lint groups provided by rustc:
name sub-lints
---- ---------
...rustdoc -Whelp (and any other custom rustc driver) adds another two
tables after the rustc ones, with a different title but the same format.