inline a bit to remove an inference trigger

#775)

* Fixed long-standing bug in balanced_tree.jl that corrupted SortedMultiDict
for certain insertions.

* Added test case from issue #773

…t) (#858)

* fix: check key values, not `get` return for haskey(k, orderedrobindict)

* Fix: use isequal in setindex!

* re-fix: use `get` for `in keys()` but descend to the actual id-dict

* Remove accidental paste in docstring

* consolidate tests for issue under testset

---------

Co-authored-by: Micah Rufsvold <mjrufsvold@mathematica-mpr.com>

…racy

[backport] remove tests for `sort(::Dict)`

[Backport] Bugfix for resize in RobinDict

* Use `Base._unsetindex!` in `pop!` and `popfirst!` (#897)

* Bump codecov/codecov-action from 3 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3...v4)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* Use `Base._unsetindex!` in `pop!` and `popfirst!` for Deque

So that popped elements are not rooted by the deque and can be
GCed when they drop out of caller scope.

* Test Deque for leaks

* Use `Base._unsetindex!` in `pop!` and `popfirst!` for CircularDeque

So that popped elements are not rooted by the deque and can be GCed
when they drop out of caller scope.

* Test CircularDeque for leaks

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Bump version

* Make compatible with ancient Julia versions

* fixup! Make compatible with ancient Julia versions

* fixup! fixup! Make compatible with ancient Julia versions

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: Kiran Pamnany <kpamnany@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

- Base.keys() already works on AbstractDict's so we don't need one for
  Accumulator.
- Base.eltype() is already defined for AbstractArray's and CircularBuffer is an
  AbstractVector so it doesn't need to define it again.
- A Base.convert() from AbstractArray to Array is already defined:
  https://github.com/JuliaLang/julia/blob/1ae41a2c0a3ba49d4b39dc4933dddf952b5f7f3c/base/array.jl#L612

Backport invalidation fixes to 0.18.19