[roll third_party/pigweed] pw_containers: Allow derived Item<T> for IntrusiveList

- Update IntrusiveList to support declaring an IntrusiveList with
  classes that derive from another class that inherits from Item<T>.
- Support comparing const and non-const iterators.
- Add tests, including some compilation failure tests.
- Make some Item member functions private.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/48721

third_party/pigweed Rolled-Commits: 3700f8ba3d11281..b6884d7bd73e48b
Roller-URL: https://ci.chromium.org/b/8844317641071140000
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8844317641071140000
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ie6bddc37c194c69be19320f8004aaee5d3958220
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/49140
Reviewed-by: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
1 file changed
tree: d294b675a3a3ed0f4b0dacd571b0678b8f21c61b
  1. applications/
  2. build_overrides/
  3. pw_board_led/
  4. pw_board_led_arduino/
  5. pw_board_led_host/
  6. pw_board_led_stm32cubef4/
  7. pw_board_led_stm32f429i_disc1/
  8. pw_spin_delay/
  9. pw_spin_delay_arduino/
  10. pw_spin_delay_host/
  11. pw_spin_delay_stm32cubef4/
  12. pw_spin_delay_stm32f429i_disc1/
  13. pw_sys_io_stm32cubef4/
  14. targets/
  15. third_party/
  16. tools/
  17. .gitattributes
  18. .gitignore
  19. .gitmodules
  20. .gn
  21. activate.bat
  22. banner.txt
  23. bootstrap.bat
  24. bootstrap.sh
  25. BUILD.gn
  26. BUILDCONFIG.gn
  27. env_setup.json
  28. navbar.md
  29. PW_PLUGINS
  30. README.md
README.md

Pigweed Experimental

This repository contains experimental pigweed modules.

Repository setup

Clone this repo with --recursive to get all required submodules.

git clone --recursive https://pigweed.googlesource.com/pigweed/experimental

This will pull the Pigweed source repository into third_party/pigweed. If you already cloned but forgot to --recursive run git submodule update --init to pull all submodules.