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[pull] main from facebook:main #107

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hoxyq added 2 commits February 7, 2025 10:54
Full list of changes:
* DevTools: refactor NativeStyleEditor, don't use custom cache
implementation ([hoxyq](https://github.com/hoxyq) in
[#32298](#32298))
* fix[react-devtools-fusebox]: add extension globals to build
([hoxyq](https://github.com/hoxyq) in
[#32297](#32297))
* DevTools: fix host component filter option title
([hoxyq](https://github.com/hoxyq) in
[#32296](#32296))
* chore[DevTools]: make clipboardWrite optional for chromium
([hoxyq](https://github.com/hoxyq) in
[#32262](#32262))
* DevTools: support useEffectEvent and forward-fix experimental prefix
support ([hoxyq](https://github.com/hoxyq) in
[#32106](#32106))
Same as what we did for `react-devtools-fusebox` in
#32297.
@pull pull bot added the ⤵️ pull label Feb 7, 2025
jackpope and others added 27 commits February 7, 2025 11:12
…ion kinds (#32324)

<!--
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## Summary

<!--
Explain the **motivation** for making this change. What existing problem
does the pull request solve?
-->
Improve the error message, as the value is currently an object instead
of a string, which results in it being converted to '[object Object]'.

## How did you test this change?
Already tested locally.
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Adds a new Timing logger event to the compiler which currently only
records the walltime of running the compiler from the time the babel
plugin's Program visitor enters to the time it exits.

To enable, run the compiler with `ENABLE_REACT_COMPILER_TIMINGS=1 ...`
or `export ENABLE_REACT_COMPILER_TIMINGS=1` to set it by default.
We don't need to wait for it to be labeled now that we have the shared
maintainer check workflow.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32332).
* #32333
* __->__ #32332
There's no real reason to have 2 jobs for sizebot. It's more of a
historical artifact from before the GH migration. Merging them should
require one less worker needing to be provisioned and some of the extra
overhead
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32333).
* __->__ #32333
* #32332
Our internal build infra relies on a 1:1 mapping between `main` and the
2 build branches. Directly committing changes to those branches breaks
that infra.

Adds a simple workflow to leave a comment and decline the PR.
…ition (#32342)

This Hook is not available in RSC environments. This is already the case
in stable but not in experimental for some reason. Probably an
oversight.
…w" (#32344)

Follow-up for #32332. The Discord webhook seems to ignore draft PRs,
which is a good thing. But when a draft PR is then later set to "ready
for review" we do want to send another notification that should not be
filtered out.
…es (#32349)

Summary: Unblock internal sync.

Test Plan:

Reviewers:

Subscribers:

Tasks:

Tags:
…tools (#30767)

## Summary

This PR attempts to make running the React DevTools a little friendlier
in projects that are not completely React.

At the moment, running the DevTools with `npx react-devtools` will
default to the port to use the `PORT` env variable otherwise it'll fall
back to `8097`. `PORT` is a common env variable, so we can get into this
strange situation where the a Rails server (eg Puma) is using `PORT`,
and then the React DevTools attempts to boot using the same `PORT`.

This PR introduces a dedicated env variable, `REACT_DEVTOOLS_PORT` to
assist in this scenario.

## How did you test this change?

I'm using fish shell, so I did the following, please let me know if
there's a better way:

```sh
cd packages/react-devtools
set -x PORT 1000
set -x REACT_DEVTOOLS_PORT 2000
node bin.js
```

We can see in the UI that it's listening on `2000`. Without this PR,
it'd listen on `1000`:

![Screenshot 2024-08-21 at 10 45
42 AM](https://github.com/user-attachments/assets/a5c7590c-1b54-4ac8-9a8b-8eb66ff67cfb)
Small refactor to the `resource` type to narrow it to an arbitrary
object or void/null instead of the top type. This makes the overload on
useEffect simpler since the return type of create is no longer widened
to the top type when we merge their definitions.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32203).
* #32206
* #32205
* #32204
* __->__ #32203
Rename the flag in preparation for the overload.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32204).
* #32206
* #32205
* __->__ #32204
Merges the useResourceEffect API into useEffect while keeping the
underlying implementation the same. useResourceEffect will be removed in
the next diff.

To fork between behavior we rely on a `typeof` check for the updater or
destroy function in addition to the CRUD feature flag. This does now
have to be checked every time (instead of inlined statically like before
due to them being different hooks) which will incur some non-zero amount
(possibly negligble) of overhead for every effect.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32205).
* #32206
* __->__ #32205
Removes useResourceEffect.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32206).
* __->__ #32206
* #32205
## Summary

Fixes #32354.

Re-creation of #15197: adds a dev-only warning if `create == null` to
the three `use*Effect` functions:

* `useEffect`
* `useInsertionEffect`
* `useLayoutEffect`

Updates the warning to match the same text given in the
`react/exhaustive-deps` lint rule.

## How did you test this change?

I applied the changes manually within `node_modules/` on a local clone
of
https://github.com/JoshuaKGoldberg/repros/tree/react-use-effect-no-arguments.

Please pardon me for opening a PR addressing a not-accepted issue. I was
excited to get back to #15194 -> #15197 now that I have time. 🙂

---------

Co-authored-by: lauren <[email protected]>
## Summary

In React Native, public instances and internal host nodes are not
represented by the same object (ReactNativeElement & shadow nodes vs.
just DOM elements), and the only one that's required for rendering is
the shadow node. Public instances are generally only necessary when
accessed via refs or events, and that usually happens for a small amount
of components in the tree.

This implements an optimization to create the public instance on demand,
instead of eagerly creating it when creating the host node. We expect
this to improve performance by reducing the logic we do per node and the
number of object allocations.

## How did you test this change?

Manually synced the changes to React Native and run Fantom tests and
benchmarks, with the flag enabled and disabled. All tests pass in both
cases, and benchmarks show a slight but consistent performance
improvement.
…s` (#32372)

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## Summary

<!--
Explain the **motivation** for making this change. What existing problem
does the pull request solve?
-->

When using React Devtools, calling `console.log('%s', null)` in userland
can cause it to throw an error:

```
TypeError: Cannot read properties of null (reading 'toString')
```

## How did you test this change?

Added a unit test.

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See 47ng/nuqs#808.
For Hookstate Proxies of class instances, `data.constructor.name`
returns `Proxy({})`, so use
`Object.getPrototypeOf(data).constructor.name` instead, which works
correctly from my testing.

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TestName` is helpful in development.
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open `chrome://inspect`, and press "Inspect".
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## Summary

React DevTools immediately bricks itself if you inspect any component
that has a prop that is a Hookstate that wraps a class instance ...
because these are proxies where `data.constructor.name` returns some
un-cloneable object, but `Object.getPrototypeOf(data)` doesn't return
`Object` (it returns the prototype of the class inside).

## How did you test this change?

This part of the code has no associated tests at all.

Technically,
`packages/react-devtools-shared/src/__tests__/legacy/inspectElement-test.js`
exists, but I tried `yarn test` and these tests aren't even executed
anymore. I can't figure it out, so whatever.

If you run this code:

```js
    class Class {}
    const instance = new Class();

    const instanceProxy = new Proxy(instance, {
      get(target, key, receiver) {
        if (key === 'constructor') {
          return { name: new Proxy({}, {}) };
        }

        return Reflect.get(target, key, receiver);
      },
    });
```

then `instanceProxy.constructor.name` returns some proxy that cannot be
cloned, but `Object.getPrototypeOf(instanceProxy).constructor.name`
returns the correct value.

This PR fixes the devtools to use
`Object.getPrototypeOf(instanceProxy).constructor.name`.

I modified my local copy of devtools to use this method and it fixed the
bricking that I experienced.

Related #29954
Pending internal decision to ship in Canary.
Still off for FB builds.

Docs: reactjs/react.dev#7427
This Hook will be used to drive a View Transition based on a gesture.

```js
const [value, startGesture] = useSwipeTransition(prev, current, next);
```

The `enableSwipeTransition` flag will depend on `enableViewTransition`
flag but we may decide to ship them independently. This PR doesn't do
anything interesting yet. There will be a lot more PRs to build out the
actual functionality. This is just wiring up the plumbing for the new
Hook.

This first PR is mainly concerned with how the whole starts (and stops).
The core API is the `startGesture` function (although there will be
other conveniences added in the future). You can call this to start a
gesture with a source provider. You can call this multiple times in one
event to batch multiple Hooks listening to the same provider. However,
each render can only handle one source provider at a time and so it does
one render per scheduled gesture provider.

This uses a separate `GestureLane` to drive gesture renders by marking
the Hook as having an update on that lane. Then schedule a render. These
renders should be blocking and in the same microtask as the
`startGesture` to ensure it can block the paint. So it's similar to
sync.

It may not be possible to finish it synchronously e.g. if something
suspends. If so, it just tries again later when it can like any other
render. This can also happen because it also may not be possible to
drive more than one gesture at a time like if we're limited to one View
Transition per document. So right now you can only run one gesture at a
time in practice.

These renders never commit. This means that we can't clear the
`GestureLane` the normal way. Instead, we have to clear only the root's
`pendingLanes` if we don't have any new renders scheduled. Then wait
until something else updates the Fiber after all gestures on it have
stopped before it really clears.
…ed by Flow tooling syntax (#32382)

## Summary

The `flow-api-translator` from the `hermes` repo does not support flow
type spreads. It is currently not able to digest the ReactNativeTypes
file as it contains unsupported syntax. The simplest solution is to
change the type of the `TouchedViewDataAtPoint` to equivalent, yet
supported by the Flow tooling. In this case the intersection can be used
as
the `TouchedViewDataAtPoint` and `InspectorData` have no common
property.

## How did you test this change?

Run yarn flow native
michaelfaith and others added 30 commits February 28, 2025 11:12
…2411)

Since the compiler plugin is going to be merged into the hooks plugin,
and ultimately decomposed into several more rules, it would be good to
start creating a more traditional folder structure for the plugin. This
change just moves the rules into a `rules` folder.

Co-authored-by: lauren <[email protected]>
…onfig (#32457)

This change swaps which config `recommended` is aliasing. In 5.2.0, the
new flat config was introduced as `recommended-latest`, while
`recommended` still pointed at the legacy rc-based config, with a note
that in the next major version `recommended` would be updated to point
at `recommend-latest`. This change makes that swap, and make the default
`recommended` experience the flat config. To continue using the legacy
rc recommended config, please make the following change in your config

```diff
- extends: ['plugin:react-hooks/recommended']
+ extends: ['plugin:react-hooks/recommended-legacy']
```

This change also deprecates `recommended-latest` in favor of
`recommended`. `recommended-latest` will be removed in a future major
version.

The README has been updated to reflect the new usage, and to put the
flat config sections before the legacy config sections.

I also took the opportunity to change the v9 fixture to use a typescript
config, serving as a demonstration for usage as well as a way to
validate the types are correct.

BREAKING CHANGE

---------

Co-authored-by: lauren <[email protected]>
Randomly noticed this when I looked at a recent [DevTools regression
test run](https://github.com/facebook/react/actions/runs/13578385011).

I don't recall why we added `continue-on-error` previously, but I
believe it was to keep all jobs in the matrix running even if one were
to fail, in order to fully identify any failures from code changes like
build or test failures.

There is now a `fail-fast` option which does this.
[`continue-on-error`](https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#jobsjob_idcontinue-on-error)
now means:

> Prevents a workflow run from failing when a job fails. Set to true to
allow a workflow run to pass when this job fails.

so it's not correct to use it.
I end up rebuilding for testing the view-transition fixture a lot. It
doesn't need everything that flight needs so this just adds a short hand
that's a little faster to rebuild.

---------

Co-authored-by: Hendrik Liebau <[email protected]>
We added support for `onScrollEnd` in #26789 but it only works in Chrome
and Firefox. Safari still doesn't support `scrollend` and there's no
indication that they will anytime soon so this polyfills it.

While I don't particularly love our synthetic event system this tries to
stay within the realm of how our other polyfills work. This implements
all `onScrollEnd` events as a plugin.

The basic principle is to first feature detect the `onscrollend` DOM
property to see if there's native support and otherwise just use the
native event.

Then we listen to `scroll` events and set a timeout. If we don't get any
more scroll events before the timeout we fire `onScrollEnd`. Basically
debouncing it. If we're currently pressing down on touch or a mouse then
we wait until it is lifted such as if you're scrolling with a finger or
using the scrollbars on desktop but isn't currently moving.

If we do get any native events even though we're in polyfilling mode, we
use that as an indication to fire the `onScrollEnd` early.

Part of the motivation is that this becomes extra useful pair for
#32422. We also probably need
these events to coincide with other gesture related internals so you're
better off using our polyfill so they're synced.
numRequiredArgs has to be more than 0 and the pass depends on that

--
Summary: Correctly supports React.useEffect when React is
imported as `import * as React from 'react'`
(as well as other namespaces as specified in the config).
…sions (#32498)

This change adds more details about prior versions of the plugin's
config, to help people as they migrate from legacy to flat configs
across multiple versions of this plugin. At some point in the 6.0 or 7.0
cycle, it would probably make sense to re-consolidate this into a single
version.

Closes #32494
Bassed off: #32425

Wait to land internally.

[Commit to
review.](66aa6a4)

This has landed everywhere
…en (#32500)

This is really the essence mechanism of the `useSwipeTransition`
feature.

We don't want to immediately switch to the destination state when
starting a gesture. The effects remain mounted on the current state. We
want the current state to be "live". This is important to for example
allow a video to keeping playing while starting a swipe (think
TikTok/Reels) and not stop until you've committed the action. The only
thing that can be live is the "new" state. Therefore we treat the
destination as the "old" state and perform a reverse animation from
there.

Ideally we could apply the old state to the DOM tree, take a snapshot
and then revert it back in the mutation of `startViewTransition`.
Unfortunately, the way `startViewTransition` was designed it always
paints one frame of the "old" state which would lead this to cause a
flicker.

To work around this, we need to create a clone of any View Transition
boundary that might be mutated and then render that offscreen. That way
we can render the "current" state on screen and the "destination" state
offscreen for the screenshots. Being mutated can be either due to React
doing a DOM mutation or if a child boundary resizes that causes the
parent to relayout. We don't have to do this for insertions or deletions
since they only appear on one side.

The worst case scenario is that we have to clone the whole root. That's
what this first PR implements. We clone the container and if it's not
absolutely positioned, we position it on top of the current one. If the
container is `document` or `<html>` we instead clone the `<body>` tag
since it's the only one we can insert a duplicate of. If the container
is deep in the tree we clone just that even though technically we should
probably clone the whole document in that case. We just keep the impact
smaller. Ideally though we'd never hit this case. In fact, if we clone
the document we issue a warning (always for now) since you probably
should optimize this. In the future I intend to add optimizations when
affected View Transition boundaries are absolutely positioned since they
cannot possibly relayout the parent. This would be the ideal way to use
this feature most efficiently but it still works without it.

Since we render the "old" state outside the viewport, we need to then
adjust the animation to put it back into the viewport. This is the
trickiest part to get right while still preserving any customization of
the View Transitions done using CSS. This current approach reapplies all
the animations with adjusted keyframes.

In the case of an "exit" the pseudo-element itself is positioned outside
the viewport but since we can't programmatically update the style of the
pseudo-element itself we instead adjust all the keyframes to put it back
into the viewport. If there is no animation on the group we add one.

In the case of an "update" the pseudo-element is positioned on the new
state which is already inside the viewport. However, the auto-generated
animation of the group has a starting keyframe that starts outside the
viewport. In this case we need to adjust that keyframe.

In the future I might explore a technique that inserts stylesheets
instead of mutating the animations. It might be simpler. But whatever
hacks work to maximize the compatibility is best.
Setting the animation's currentTime causes a quirk where the transition
can end up off by a bit and the end state can be slightly off the end
time.

However, I realized that we don't have to because if we just set the
direction in the `animate()` call directly the Safari bug goes away.
I don't think this is in use anymore
This is used to register Server References that exist in the current
environment but also exists in the server it might call into. Such as a
remote server.

If the value comes from the remote server in the first place then this
is called automatically to ensure that you can pass a reference back to
where it came from - even if the `serverModuleMap` option is used. This
was already the case when `serverModuleMap` wasn't passed. This is how
you can pass server references back to the server. However, when we
added `serverModuleMap` that pass was skipped because we were getting
real functions instead of proxies.

For functions that wasn't yet passed from the remote server to the
current server, we can register them eagerly just like we do for
`import('/server').registerServerReference()`. You can now also do this
with `import('/client').registerServerReference()`. We could make them
shared so you only have to do this once but it might not be possible to
pass to the remote server and the remote server might not even be the
same RSC renderer. Therefore I split them. It's up to the compiler
whether it should do that or not. It has to know that any function you
might call might be able to receive it. This is currently global to a
specific RSC renderer.
)

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## Summary

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does the pull request solve?
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Adds changelog entries for the last two minor releases of
`eslint-plugin-react-hooks`. Fixes #31717.

I chose to not include #31208 (8382581)
and #32115 (fd2d279) in the changelog
as they only changed internals that do not affect consumers of the
plugin, and it doesn't seem like the changelog previously included such
changes.

Changes are sorted by importance (rather than by commit date), with the
most important changes first.

## How did you test this change?

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Docs only, nothing to test.
…th passChildrenWhenCloningPersistedNodes (#32528)

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8. Make sure your code lints (`yarn lint`). Tip: `yarn linc` to only
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## Summary

<!--
Explain the **motivation** for making this change. What existing problem
does the pull request solve?
-->

This PR fixes asserts when `passChildrenWhenCloningPersistedNodes` is
enabled for React Native and OffscreenComponent child rendering unhides
host components.

Discussions around possible fixes for the asserts seen in React Native
suggested changing the way we handle hiding/unhiding host components by
updating the fiber state with the hidden host component instead of
submitting a hidden clone Fabric and keeping the original as the current
fiber.

Implementing this fix would require holding onto the original styling of
the hidden host component. The reconciler updates the styling by adding
`display: none` to hide the contents. If the original host component was
already hidden, the renderer would lose that information and remove the
styling when showing the contents again.

To reduce the changes required to make
`passChildrenWhenCloningPersistedNodes` work, this PR falls back to the
original cloning method when OffscreenComponents are part of the
children needed to be added back. This effectively resolve the asserts
triggered by the feature in RN and improves overall performance.

## How did you test this change?

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their output, screenshots / videos if the pull request changes the user
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This fix was tested by enabling `passChildrenWhenCloningPersistedNodes`
in an app built with React Native that had a repro for triggering the
asserts. The asserts do not occur anymore when using the changes in this
PR.

---------

Co-authored-by: Nick <[email protected]>
Currently in the `compiler` workspace, we invoke esbuild directly to
build most packages (with the exception of `snap`). This has been mostly
fine, but does not allow us to do things like generate type declaration
files.

I would like #32416 to be able to consume the merged
eslint-plugin-react-compiler from source rather than via npm, and one of
the things that has come up from my exploration in that stack using the
compiler from source is that babel-plugin-react-compiler is missing type
declarations. This is primarily because React's build process uses
rollup + rollup-plugin-typescript, which runs tsc. So the merged plugin
needs to typecheck properly in order to build. An alternative might be
to migrate to something like babel with rollup instead to simply strip
types rather than typecheck before building. The minor downside of that
approach is that we would need to manually maintain a d.ts file for
eslint-plugin-react-hooks. For now I would like to see if this PR helps
us make progress rather than go for the slightly worse alternative.

[`tsup`](https://github.com/egoist/tsup) is esbuild based so build
performance is comparable. It is slower when generating d.ts files, but
it's still much faster than rollup which we used prior to esbuild. For
now, I have turned off `dts` by default, and it is only passed when
publishing on npm.

If you want to also generate d.ts files you can run `yarn build --dts`.

```
# BEFORE: build all compiler packages (esbuild)
$ time yarn build

✨  Done in 15.61s.
yarn build  13.82s user 1.54s system 96% cpu 15.842 total

# ---

# AFTER: build all compiler packages (tsup)
$ time yarn build

✨  Done in 12.39s.
yarn build  12.58s user 1.68s system 106% cpu 13.350 total

# ---

# AFTER: build all compiler packages and type declarations (tsup)
$ time yarn build --dts

✨  Done in 30.69s.
yarn build  43.57s user 3.20s system 150% cpu 31.061 total
```

I still need to test if this unblocks #32416 but this stack can be
landed independently though as we could probably just release type
declarations on npm. No one should be using the compiler directly, but
if they really wanted to, lack of type declarations would not stop them
(cf React secret internals).

Note that I still kept esbuild as we still use it directly for forgive.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32550).
* #32551
* __->__ #32550
Fixes an incorrect condition for running tests in the compiler
workspace.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32551).
* __->__ #32551
* #32550
Use variant to begin rolling this out internally.
…et too (#32545)

Otherwise these can survive into the next View Transition and cause
havoc to that transition.

This was appearing as a flash in Safari in the fixture when going from
A->B. This triggers a View Transition and at the same time the scroll
position updates in an effect. That fires a scroll event which starts a
gesture. This shouldn't really happen and the SwipeRecognizer should
ideally ignore those but it's good to surface edge cases. That gesture
is blocked on the View Transition finishing and then immediately after
it starts a gesture View Transition. That gesture then picked up the
former Animation from the previous transition which caused issues. This
PR fixes that flash.
Enabling feature detection of early DOM features in a framework is
reckless. I'm not judging other frameworks (but also a little bit).
Because if you do something like `if (moveBefore) moveBefore(a, b) else
insertBefore(a, b)` like we do and then the implementation has to change
there are still too many websites out there that it becomes impossible
to change it. It would break the web. It would instead have to change to
a different name. That's what happened with `contains` -> `includes`.
Counter to popular belief it didn't have anything to do with patching
prototypes. Therefore, ideally frameworks shouldn't start rely on it
until there's two implementations so that there's time for feedback.

That's why we didn't immediately enable this even in experimental.
However, at this point there's probably enough feature detection and it
has shipped long enough in Chrome that it's unlikely to be able to
change at this point.

We can enable it now. For now just in `@experimental` to see if we can
flush out issues with it before bringing it to stable.
This fixes a critical issue with moveBefore. I was told that the
disconnected -> connected case was going to be relaxed and not be an
error but apparently that is not the case.

This means that we can't use this for initial insertions. Only moves.

Unfortunately React's internals doesn't distinguish these cases. This
adds a hack that checks each nodes but this is pretty bad for
performance. We should only call this in one or the other case.

Given that we still need feature detection. Both of which means that
these calls are no longer inlined and this extra code. I wonder if it's
even worth it given that you can't even rely on it working anyway since
not all browsers have it. Kind of don't want to ship this until all
browsers have it.

Even then we'd ideally refactor React to use separate code paths for
initial insertion vs moves. Which leads to some unfortunate code
duplication.
Accidentally copypasted the wrong esbuild config.
We customize the messages only in DEV to keep it small in prod.

We skip some messages that are not really errors but more like
information.
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