Pre-RFC: add LLM text version to rustdoc

[the8472]

@CAD97

This would be an interesting stop-gap for an API "discovery" method, since the generated rustdoc is significantly more reference targeted than discovery. And as a side effect, be a useful ingest format for textual LLMs as well.

IMO we need summary tables. Not the first time this comes up.

• Rustdoc hiding important bounds - #11 by the8472
• rustdoc: provide summary views · Issue #14475 · rust-lang/rust · GitHub
• Documentation needs indexes (function summaries) · Issue #40273 · rust-lang/rust · GitHub
• Group navigation items in the docs by source crate/module · Issue #105307 · rust-lang/rust · GitHub
• Why does the rust documentation still suck? It basically only works if you alrea... | Hacker News