Rollup of 6 pull requests

[GuillaumeGomez]

Successful merges:

• Rework SESSION_GLOBALS API #84961 (Rework SESSION_GLOBALS API)
• Use diagnostic items instead of lang items for rfc2229 migrations #86726 (Use diagnostic items instead of lang items for rfc2229 migrations)
• Update BTreeSet::drain_filter documentation #86789 (Update BTreeSet::drain_filter documentation)
• Document rustdoc with --document-private-items #86913 (Document rustdoc with --document-private-items)
• Update .mailmap file #86957 (Update .mailmap file)
• mailmap: Add alternative addresses for myself #86971 (mailmap: Add alternative addresses for myself)

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

[GuillaumeGomez]

@bors: r+ p=6 rollup=never

[bors]

📌 Commit a248cba has been approved by GuillaumeGomez

[rust-log-analyzer]

The job mingw-check failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

configure: rust.channel         := nightly
configure: rust.debug-assertions := True
configure: llvm.assertions      := True
configure: dist.missing-tools   := True
configure: build.configure-args := ['--enable-sccache', '--disable-manage-submodu ...
configure: writing `config.toml` in current directory
configure: 
configure: run `python /checkout/x.py --help`
configure: 
---
    Checking rustc_mir v0.0.0 (/checkout/compiler/rustc_mir)
error[E0432]: unresolved import `rustc_span::with_default_session_globals`
 --> compiler/rustc_lint/src/tests.rs:2:18
  |
2 | use rustc_span::{with_default_session_globals, Symbol};
  |                  |
  |                  |
  |                  no `with_default_session_globals` in the root
  |                  help: a similar name exists in the module: `with_session_globals`
    Checking rustc_typeck v0.0.0 (/checkout/compiler/rustc_typeck)
error: aborting due to previous error

For more information about this error, try `rustc --explain E0432`.