Vadim Petrochenkov

r? @petrochenkov @bors try @rust-timer queue

@bors rollup=maybe

r=me after squashing commits (2 commits, probably, because `#[rustc_access_level]` and `compiler/rustc_resolve/src/access_levels.rs` refactoring are two distinct things). @rustbot author

Thanks! @bors r+

@bors r+

> We cannot yet derive Copy and Clone for unions FYI, `Copy` can already be derived, it was a part of initial union implementation.

`+whole-archive` shouldn't be necessary in this case, see https://github.com/Wilfred/difftastic/issues/253#issuecomment-1132570958.

I've seen this crate when debugging another PR to rustc. IIRC, the compiled C++ tree-sitter libraries depend on the compiled C tree-sitter libraries, so the fix is to do `cpp_build.compile(&format!("{}-cpp",...

This is so irrelevant in practice that I'm not even sure it's something that needs to be highlighted in the docs. The separation into lexer and parser in Rust is...

I use both depending on context - "macro attributes and other attributes" or "attribute macros and other macros".