{"ast_node_type":"other","tokens":[{"end":3,"kind":"keyword","start":0,"text":"//!"}]}
//!
//! `unspecialize(c, (p_1, .., p_n, q_1, .., q_m)) := (c(p_1, .., p_n), q_1, .., q_m)`.
//! This is done for a single witness-tuple in [`WitnessStack::apply_constructor`], and for a set of