CXDiagnosticSeverity

\brief A diagnostic that has been suppressed, e.g., by a command-line option.

\brief This diagnostic is a note that should be attached to the previous (non-note) diagnostic.

\brief This diagnostic indicates suspicious code that may not be wrong.

\brief This diagnostic indicates that the code is ill-formed.

\brief This diagnostic indicates that the code is ill-formed such that future parser recovery is unlikely to produce useful results.