Since the original PR that supposedly enabled proguard, it was using the
android proguard rules that disable optimizations. See initial PR in [0]

This PR changes the flutter gradle plugin to use the
`proguard-android-optimize.txt` (instead of `proguard-android.txt`)
which will enable optimizations/shrinking of platform code (i.e.
java/kotlin).

For a simple flutter hello world this results in a 25% reduction in the
resulting DEX file (`classes.dex` of the APK).

Note for users:

For some users this may result in issues because their java/kotlin code is
now better optimized & tree shaken and thereby symbols may be no longer
available or being obfuscated.

To fix those issues it's best to craft precise proguard rules describing the
extra symbols that are needed by the app (see [1]). But it's also possible to
opt out entirely of optimizations by using the unoptimized proguard rules.

To add custom proguard rules or use the unoptimized android rules, one can
update `android/app/build.gradle`:
```
android {
    ...
    buildTypes {
        release {
            ...
+            proguardFiles(
+                // Not ideal: Disables optimizations by using unoptimized android rules.
+                getDefaultProguardFile("proguard-android.txt"),
+
+                // Better: Have precise keep rules to only keep things that are needed.
+                "custom-rules.pro",
+            )
        }
    }
}
```


[0] f098de1f
[1] https://developer.android.com/build/shrink-code

Fixes https://github.com/flutter/flutter/issues/136879

This updates one of them M3 test to use golden test from https://github.com/flutter/flutter/pull/135901
Keeping it consistent with this [update](https://github.com/flutter/flutter/pull/136809#discussion_r1365053630)

This relands https://github.com/flutter/flutter/pull/136809 (it was reverted in https://github.com/flutter/flutter/pull/137242)
---

Updated unit tests for `CircleOutlinedButton` to have M2 and M3 versions.

More info in #127064

This also gets rid of unnecessary `fromSwatch` usage (part of https://github.com/flutter/flutter/issues/132584 documentation and test cleanup)

Closes https://github.com/flutter/flutter/issues/130455.

Updates the name `WebServiceWorker` uses to reference the asset manifest file to the name of the new file generated since   https://github.com/flutter/flutter/pull/131382. This will make Flutter web apps correctly prefetch the asset manifest file.

Fixes https://github.com/flutter/flutter/issues/136698.

Alters how `throwToolExit` creates its matcher. This results is an improved description of the matcher.

The mismatch description isn't improved by this, but I writing an entirely custom matcher to fix this isn't ideal either. We can instead mitigate the issue by augmenting the `toString` implementation of `ToolExit` to include the exit code, if it is non-null.

With these changes, the first few lines of output from a test would look like this:

```
Expected: throws <Instance of 'ToolExit'> with `exitCode`: <42> and `message`: contains 'message'
  Actual: <Closure: () => Never>
   Which: threw ToolExit:<Exit code: 41232. Error: message>
```

This method controls whether the builder needs to be called again again even if the layout constraints are the same.

By default, the builder will always be called when the widget is updated because the logic in the callback might have changed. However, there are cases where subclasses of ConstrainedLayoutBuilder know that certain property updates only affect paint and not build. In these cases, we lack a way of expressing that the builder callback is not needed -- and we end up doing superfluous work.

This PR gives subclasses the ability to know exactly when the callback needs to be called and when it can be skipped.

## Description

This PR fixes typos in 
- `actions.dart`
- `app_bar.dart`
- `basic.dart`
- `button_bar_theme.dart`

https://github.com/flutter/engine/compare/87f384c2d70b...bedc49efc85c

2023-10-26 dkwingsmt@users.noreply.github.com Skip invalid renders in Dart (flutter/engine#47323)

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Fix Small Typos.

https://github.com/flutter/engine/compare/9788bb9ff83e...87f384c2d70b

2023-10-26 chris@bracken.jp [macOS] Reuse NSWindow instance across unit tests (flutter/engine#47350)
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2023-10-26 skia-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from akT2HxdLNPWSG-gbV... to 37VxdxlPfdkek7mwC... (flutter/engine#47351)
2023-10-26 johnoneil@users.noreply.github.com Fix for undefined `uint8_t` seen on Clang-15+GCC13 (flutter/engine#47288)

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https://github.com/flutter/engine/compare/ce1c1ee54107...9788bb9ff83e

2023-10-26 98614782+auto-submit[bot]@users.noreply.github.com Reverts "[Impeller] Disable layer tree screenshots." (flutter/engine#47356)
2023-10-26 737941+loic-sharma@users.noreply.github.com [Windows] Refactor high contrast mode detection (flutter/engine#47314)
2023-10-26 jonahwilliams@google.com [Impeller] Disable layer tree screenshots. (flutter/engine#46171)

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Fixes https://github.com/flutter/flutter/issues/129471.

Does so by doing a very similar thing that is done by https://github.com/flutter/flutter/pull/121958, but for a task that is specific to the add to app build process.

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https://github.com/flutter/engine/compare/394744d2c4d0...ce1c1ee54107

2023-10-26 jason-simmons@users.noreply.github.com [Impeller] Fix the transform and geometry criteria for an optimization in TiledTextureContents (flutter/engine#47341)
2023-10-26 jason-simmons@users.noreply.github.com Roll HarfBuzz to 8.2.2 (flutter/engine#47284)

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This comment on _localizedThemeDataCacheSize was a bit garbled from getting split up, and the doc on _localizedThemeDataCache was missing from having been moved elsewhere.

It looks like the dislocation happened in 8b86d238 (#116088), which was otherwise making unrelated changes, including a couple of lines near these.  Likely it was due to an error in resolving merge or rebase conflicts at some point while revising that PR.

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https://github.com/flutter/engine/compare/7c5c8f587992...394744d2c4d0

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https://github.com/flutter/engine/compare/9363fe6ba503...7c5c8f587992

2023-10-26 jonahwilliams@google.com [Impeller] remove giant closure in EntityPass. (flutter/engine#47343)
2023-10-26 godofredoc@google.com Adds firebase test lab tests. (flutter/engine#47320)
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https://github.com/flutter/engine/compare/542f8bc4c019...9363fe6ba503

2023-10-26 skia-flutter-autoroll@skia.org Roll Skia from 091de96cad96 to e1cc41ff84ca (1 revision) (flutter/engine#47340)
2023-10-26 30870216+gaaclarke@users.noreply.github.com [Impeller] added missing openplayground (flutter/engine#47338)

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Related to tracking issue:
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This PR sends analytic events for each of the doctor validators.

This PR below will need to land first in `dart-lang/tools` before this merges.

https://github.com/flutter/engine/compare/d8132d5070bf...542f8bc4c019

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2023-10-26 30870216+gaaclarke@users.noreply.github.com [Impeller] Improved documentation of the gaussian blur. (flutter/engine#47283)

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https://github.com/flutter/packages/compare/f751ffb7d3cf...fea24c5b93b4

2023-10-25 stuartmorgan@google.com [url_launcher] Fix launch mode types in new APIs (flutter/packages#5232)
2023-10-25 43054281+camsim99@users.noreply.github.com [camerax] Implement `setZoomLevel` (flutter/packages#4950)
2023-10-25 engine-flutter-autoroll@skia.org Roll Flutter from 5e8b5f4e to 5dd2a4e0 (59 revisions) (flutter/packages#5231)
2023-10-25 43054281+camsim99@users.noreply.github.com [file_selector_android] Run tests on AVDs running Android 34 (flutter/packages#5218)

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