Auto merge of #70351 - Centril:rollup-tveoq3w, r=Centril

Rollup of 8 pull requests

Successful merges:

 - #68884 (Make the `type_of` return a generic type for generators)
 - #69788 (Fix sequence of Type and Trait in optin-builtin-traits in Unstable Book)
 - #70074 (Expand: nix all fatal errors)
 - #70077 (Store idents for `DefPathData` into crate metadata)
 - #70213 (traits/fulfill: allow `stalled_on` to track `ty::Const::Infer(_)` (unused yet).)
 - #70259 (Use Reveal::All in MIR optimizations)
 - #70284 (correctly handle const params in type_of)
 - #70289 (Refactor `codegen`)

Failed merges:

r? @ghost