* prefer_void_to_null in flutter_test

* fix CI

https://github.com/flutter/engine/compare/7ea8b9968dce...22522c0b3e69

git log 7ea8b9968dce..22522c0b3e69 --no-merges --oneline
22522c0b3 Roll src/third_party/skia f03d4eaa2487..932759e9b414 (2 commits) (flutter/engine#6497)


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https://github.com/flutter/engine/compare/f307c7fd070b...7ea8b9968dce

git log f307c7fd070b..7ea8b9968dce --no-merges --oneline
7ea8b9968 Roll src/third_party/skia 9835dd51b320..f03d4eaa2487 (1 commits) (flutter/engine#6496)


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https://github.com/flutter/engine/compare/daed2b7d61f3...f307c7fd070b

git log daed2b7d61f3..f307c7fd070b --no-merges --oneline
f307c7fd0 Remove VM options that are on by default now. (flutter/engine#6495)
61cf4c01f Pass scriptcode and variantcode to dart:ui Window. (flutter/engine#6493)
0eda0cfd4 Roll src/third_party/skia 04ac46135f23..9835dd51b320 (7 commits) (flutter/engine#6494)


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This attempts to re-land #22656.

There are two changes from the original:

I turned off wrapping completely when not sending output to a terminal. Previously I had defaulted to wrapping at and arbitrary 100 chars in that case, just to keep long messages from being too long, but that turns out the be a bad idea because there are tests that are relying on the specific form of the output. It's also pretty arbitrary, and mostly people sending output to a non-terminal will want unwrapped text.

I found a better way to terminate ANSI color/bold sequences, so that they can be embedded within each other without needed quite as complex a dance with removing redundant sequences.

As part of these changes, I removed the Logger.supportsColor setter so that the one source of truth for color support is in AnsiTerminal.supportsColor.

*     Turn on line wrapping again in usage and status messages, adds ANSI color to doctor and analysis messages. (#22656)

    This turns on text wrapping for usage messages and status messages. When on a terminal, wraps to the width of the terminal. When writing to a non-terminal, wrap lines at a default column width (currently defined to be 100 chars). If --no-wrap is specified, then no wrapping occurs. If --wrap-column is specified, wraps to that column (if --wrap is on).

    Adds ANSI color to the doctor and analysis output on terminals. This is in this PR with the wrapping, since wrapping needs to know how to count visible characters in the presence of ANSI sequences. (This is just one more step towards re-implementing all of Curses for Flutter. :-)) Will not print ANSI sequences when sent to a non-terminal, or of --no-color is specified.

    Fixes ANSI color and bold sequences so that they can be combined (bold, colored text), and a small bug in indentation calculation for wrapping.

    Since wrapping is now turned on, also removed many redundant '\n's in the code.

This adds configurable timeouts for the Dart VM. Due to some testing
machines running things quite slowly, this is becoming more necessary.

ButtonThemeData no longer requires a colorScheme. If colorScheme is null, ButtonTheme.of() will initialize it from the current Theme.

We decided that redefining the default for templates was premature. We're going to go back to having "module" in experimental land again, and we'll try again when we have the feature set fully baked.

This keeps the writing of the .metadata files, and writing the template type to them, because that was a good improvement, and there are still a bunch of added tests that improve our coverage.

Adds person related icons: `group` & `group_solid`, `person` & `person_solid` and `person_add` & `person_add_solid`.

* Remove new keyword from default template app

This is required in order to support "flutter run --profile"

* Allow passing a restart reason through to analytics

* Update to avoid overlaps with other code

* Remove TODO as this is the real live value

* Improve formatting + constant name

https://github.com/flutter/engine/compare/e68b85ae7ff4...bc6df5bc34dc

git log e68b85ae7ff4..bc6df5bc34dc --no-merges --oneline
bc6df5bc3 Roll buildroot to 2f0e56e63f92f1a8b80603e4b1c671fcf7b04feb (flutter/engine#6480)
2d199e85c Roll src/third_party/skia ef85d19100b1..42137de2b2b8 (7 commits) (flutter/engine#6479)
b6060d490 Missing dealloc method in FlutterEventChannel (flutter/engine#6464)


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Fixes https://github.com/flutter/flutter/issues/19507

https://github.com/flutter/engine/compare/bf377896ff0f...e68b85ae7ff4

git log bf377896ff0f..e68b85ae7ff4 --no-merges --oneline
e68b85ae7 Roll Tonic (flutter/engine#6478)
fcb7292cb Add build targets for fuchsia (flutter/engine#6470)


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Fixes #22451

* added missing properties

https://github.com/flutter/engine/compare/289c6b1a1c27...bf377896ff0f

git log 289c6b1a1c27..bf377896ff0f --no-merges --oneline
bf377896f Revert height (flutter/engine#6477)
ec103ad52 Roll src/third_party/skia a41a74ac7994..ef85d19100b1 (11 commits) (flutter/engine#6476)

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https://github.com/flutter/engine/compare/08af410d4ab5...289c6b1a1c27

git log 08af410d4ab5..289c6b1a1c27 --no-merges --oneline
289c6b1a1 Revert "Revert "Use single_root_scheme when compiling platform (#6402)" (#6431)" (flutter/engine#6473)

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Reverts flutter/flutter#22837

Try to fix application_test

* Revert "Add a profile build type to the app template (#22837)"

This reverts commit 3b248fdc.

Gradle plugin support for adding flutter as subproject to another Android app

https://github.com/flutter/engine/compare/69e9eb1cd1ce...08af410d4ab5

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08af410d4 [dart] Roll dart to a50dfd66980ed5c9aef9851fcc57557fb607769c. (flutter/engine#6472)
25b8bbfb2 Roll src/third_party/skia 817c01aecdc4..a41a74ac7994 (1 commits) (flutter/engine#6475)


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This is required in order to support "flutter run --profile"

https://github.com/flutter/engine/compare/bfcdad855729...69e9eb1cd1ce

git log bfcdad855729..69e9eb1cd1ce --no-merges --oneline
69e9eb1cd Roll src/third_party/skia 9b7bfd09106f..817c01aecdc4 (1 commits) (flutter/engine#6474)
c048bec5d Roll Dart to e4840ec239249ddc6b588fabfca57df2307e0634 (flutter/engine#6466)


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https://github.com/flutter/engine/compare/7ecc879ffd9a...bfcdad855729

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bfcdad855 Roll src/third_party/skia 00de965d0d31..9b7bfd09106f (11 commits) (flutter/engine#6471)


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https://github.com/flutter/engine/compare/88facf405434...7ecc879ffd9a

git log 88facf405434..7ecc879ffd9a --no-merges --oneline
7ecc879ff Fix failing test on Cirrus (flutter/engine#6469)


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https://github.com/flutter/engine/compare/572fa5646af7...88facf405434

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88facf405 Roll src/third_party/skia 8ad991da4c04..00de965d0d31 (6 commits) (flutter/engine#6467)
647302a28 Correct issues in visible children determination (flutter/engine#6455)
0052733e5 Roll src/third_party/skia 95320ee01f5b..8ad991da4c04 (1 commits) (flutter/engine#6465)
7decce221 Roll src/third_party/skia 9aa3f9095622..95320ee01f5b (1 commits) (flutter/engine#6463)
2667780b9 Roll src/third_party/skia beb1559bc61f..9aa3f9095622 (1 commits) (flutter/engine#6462)
5d28dce5e Roll src/third_party/skia e9b61ef5aa34..beb1559bc61f (1 commits) (flutter/engine#6460)
54b709d3a Roll src/third_party/skia 71143d6cc039..e9b61ef5aa34 (1 commits) (flutter/engine#6459)
9fc5013eb Roll src/third_party/skia 623d2e4120c2..71143d6cc039 (1 commits) (flutter/engine#6458)
841454c8d Roll src/third_party/skia 29b11d605f25..623d2e4120c2 (1 commits) (flutter/engine#6457)
5331df8e4 Roll src/third_party/skia d037f4d204c2..29b11d605f25 (1 commits) (flutter/engine#6456)
6d4de7fc8 Roll src/third_party/skia 51c89e41c05b..d037f4d204c2 (9 commits) (flutter/engine#6454)
ba9b90766 Add `run_tests.sh` to cirrus (flutter/engine#6441)


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