{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"//!"}]}
//! 2) once that is done, variance data is transferred, and the NLL region liveness is converted to
//!    usual NLL liveness data (just computed on more locals). That's the [PoloniusLivenessContext].
//!    the polonius shape. That's the main [PoloniusContext].