Help implements the help subcommand for a multichecker or unitchecker style command.

Parse creates a flag for each of the analyzer's flags, including (in multi mode) a flag named after the analyzer, parses the flags, then filters and returns the list of analyzers enabled by flags.

PrintPlain prints a diagnostic in plain text form, with context specified by the -c flag.

ResolveURL resolves the URL field for a Diagnostic from an Analyzer and returns the URL.

-c=N: if N>0, display offending line plus N lines of context.

-json.

A JSONDiagnostic can be used to encode and decode analysis.Diagnostics to and from JSON.

A JSONSuggestedFix describes an edit that should be applied as a whole or not at all.

A TextEdit describes the replacement of a portion of a file.

A JSONTree is a mapping from package ID to analysis name to result.