Moves the flutter root initialization to a static method on the cache. This is a small step towards making this functionality non-static and instead injected like normal members - however, completely removing all of the static-ness at once was too large of a change.

Instead document and add unit tests and change existing code as little as possible.

#47161

* [flutter_tools] add package_config.json to analyze_once_test.dart

This reverts commit ae06c19a.

* migrate material to nullsafety

* address review comments

* address review comments

* fix build

[flutter_tools] handle case where file is deleted by other program or running on read only volume (#66708)

* [flutter_tools] handle case where file is deleted by other program

* Add test cases

* Update file_system.dart

* Update file_system_test.dart

* fix import

* make a static on ErrorHandligFS

* add support for no exit on failure

* address comments

* update doc comment to file or directory

No matter what level(error, warning, info) issues flutter analyze always return fatal exit code(1). CI/CD environment receive 1(!0). This may leads to e.g. Jenkins Build step 'Execute shell' marked build as failure.
I propose according to AnalysisSeverity level return fatal(1) or success(0) exit code.

flutter analyze was unconditionally using the cached dart-sdk for analysis, and was not running with the built SDK during local engine. This broke when trying to update the analyzer for null safety, since it required us to wait for the dart change to roll into the framework first.

This reverts commit 9ed3e5be.

flutter analyze was unconditionally using the cached dart-sdk for analysis, and was not running with the built SDK during local engine. This broke when trying to update the analyzer for null safety, since it required us to wait for the dart change to roll into the framework first.

* Update project.pbxproj files to say Flutter rather than Chromium

Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright.

* Update the copyright notice checker to require a standard notice on all files

* Update copyrights on Dart files. (This was a mechanical commit.)

* Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine.

Some were already marked "The Flutter Authors", not clear why. Their
dates have been normalized. Some were missing the blank line after the
license. Some were randomly different in trivial ways for no apparent
reason (e.g. missing the trailing period).

* Clean up the copyrights in non-Dart files. (Manual edits.)

Also, make sure templates don't have copyrights.

* Fix some more ORGANIZATIONNAMEs

See #41880 for history.

This reverts commit 1781d5c9.

flutter/engine@72341ed03 Roll fuchsia/sdk/core/linux-amd64 from gQ3ztEQmdEh3iE6n9EO6iGRdmDSX-edmP5WyE-Ui4BEC to gTG1jp04GzBudVJqRxulXYOEQgbYTUQgnqLDYAq7z3sC (#10115)
flutter/engine@d66031f2a Roll src/third_party/dart 82f657d7cb..0c97c31b6e (7 commits) (#10114)
flutter/engine@f742514a5 Cache font family lookups that fail to obtain a font collection (#10109)
flutter/engine@7c177724c Roll fuchsia/sdk/core/mac-amd64 from A21rwGAUjpjVTX8HgpT9Iyx6J_QZBRDhu-5GAclrf00C to UCAnzi4k9pA30l_iZ2Ru51Tc3Ke6iacIdjFMgVUVdRMC (#10107)
flutter/engine@c3165da09 Roll src/third_party/skia fdf4bfe6d389..b3956dc6ba6a (1 commits) (#10101)
flutter/engine@71702b3f8 Roll fuchsia/sdk/core/linux-amd64 from gPDgr6u-BPJTgV2Nf0tlg9MTY3JwGW0cETtsQcx365AC to gQ3ztEQmdEh3iE6n9EO6iGRdmDSX-edmP5WyE-Ui4BEC (#10103)
flutter/engine@f393da22d [fuchsia] copy over the cmx file (#10087)
flutter/engine@8ebd15d26 Roll src/third_party/skia f564f1515bde..fdf4bfe6d389 (1 commits) (#10100)
flutter/engine@f529a251b Roll fuchsia/sdk/core/mac-amd64 from lvLKs8Q4CKm_XLoZCQ72RO0RHI6yvJXnA9M_M8r4-aAC to A21rwGAUjpjVTX8HgpT9Iyx6J_QZBRDhu-5GAclrf00C (#10099)
flutter/engine@d409df823 Roll src/third_party/dart 9c148623c5..82f657d7cb (25 commits)
flutter/engine@acd139ce6 Roll src/third_party/skia 1cd1ed8976c4..f564f1515bde (1 commits) (#10097)
flutter/engine@f2c9da4a0 Roll src/third_party/skia 3ae30cc2e6e0..1cd1ed8976c4 (1 commits) (#10096)
flutter/engine@d2f0b9ef1 Roll fuchsia/sdk/core/linux-amd64 from MCDItwEzechMpZAiI0QOzuiTtNUGArUa4TprH0Er-7QC to gPDgr6u-BPJTgV2Nf0tlg9MTY3JwGW0cETtsQcx365AC (#10095)
flutter/engine@0f4db494a Roll fuchsia/sdk/core/mac-amd64 from EH_61w2lpSn0UmpJkynWM6tiT0nnKk1GhTRRKK2cGMwC to lvLKs8Q4CKm_XLoZCQ72RO0RHI6yvJXnA9M_M8r4-aAC (#10094)
flutter/engine@298799991 Roll src/third_party/skia 0f9c660aa939..3ae30cc2e6e0 (1 commits) (#10093)
flutter/engine@a4d2d3648 Roll fuchsia/sdk/core/linux-amd64 from tCzkXNr7cb5OAbS5NcJ4F_g0DgVj3w8rfbT14AcaTHoC to MCDItwEzechMpZAiI0QOzuiTtNUGArUa4TprH0Er-7QC (#10090)
flutter/engine@d27a6373d Roll fuchsia/sdk/core/mac-amd64 from xNAaLqZJk8Bkz00BaHGzE8hCpiohggO7KabM3g2wdsQC to EH_61w2lpSn0UmpJkynWM6tiT0nnKk1GhTRRKK2cGMwC (#10089)
flutter/engine@20dc17282 Roll src/third_party/skia d15571af2e1b..0f9c660aa939 (1 commits) (#10088)
flutter/engine@9e7260b9d Roll fuchsia/sdk/core/linux-amd64 from kU0OwJYlceN477ejdh9RXrl7Mp-wUTNvQozlaV96xmQC to tCzkXNr7cb5OAbS5NcJ4F_g0DgVj3w8rfbT14AcaTHoC (#10086)
flutter/engine@0e621d902 [fuchsia] Use the new far package model (#10085)
flutter/engine@bdc713695 [fuchsia] Add sysroot and clang libs to package (#10082)
flutter/engine@72f747ae4 Roll fuchsia/clang/linux-amd64 from apsjZJ9ZIwlS08divc0QwxuNgIFeN4X-52mKR9d8qacC to zHiuOGMDwdWPUkV1B2fHKyRy2fGWGcUgfa2z6dyGAZQC (#10084)
flutter/engine@bfe689ee8 Roll fuchsia/clang/mac-amd64 from USm3Qt9wen4bXoFF0T9Xt8NX-pyEfte2cTYi7geLAhQC to UYD9C8IEkWVi83ef4zwO1Ump2B8cP9Nd5WECjU8l3AUC (#10083)
flutter/engine@cf5d76c17 [fuchsia] Add support for libs in packages (#10081)
flutter/engine@c4c64896a Roll src/third_party/skia 829144cc76fe..d15571af2e1b (2 commits) (#10080)
flutter/engine@25e5d597e Roll fuchsia/sdk/core/linux-amd64 from S_24mhItBb7pfUof8zsJPPSctC7xdlfjDEXEtyO25GYC to kU0OwJYlceN477ejdh9RXrl7Mp-wUTNvQozlaV96xmQC (#10079)
flutter/engine@f7e0614b8 Change ParagraphBuilder to replace the parent style's font families with the child style's font families (#10074)
flutter/engine@eb74f2ce7 One more luci fix (#10078)
flutter/engine@6e732c7f1 Change flutter runner target for LUCI (#10075)
flutter/engine@44ec59b70 Roll src/third_party/dart fedd74669a..9c148623c5 (70 commits) (#10066)
flutter/engine@abf93699f Basic structure for flutter_jit_runner far (#10073)
flutter/engine@3c76b90b2 Track clusters and return cluster boundaries in getGlyphPositionForCoordinates (emoji fix) (#10063)
flutter/engine@e8fb641f6 Enable consts from environment in DDK for flutter_web (#10069)
flutter/engine@bd3870219 [macos] Revert check on FlutterCodecs and refactor message function] (#10009)
flutter/engine@d6e1a93e2 Roll src/third_party/skia e11dfd3da4d7..829144cc76fe (4 commits) (#10072)
flutter/engine@d595af681 Roll fuchsia/sdk/core/linux-amd64 from XqtWTBni4xpYCTr7gqU7rFTuXNY1TZ_zOqBJrZM8c_kC to S_24mhItBb7pfUof8zsJPPSctC7xdlfjDEXEtyO25GYC (#10071)

Move tools tests into a general.shard directory in preparation to changing how we shard tools tests (#36108)

Devon asked me to revert commit c4d1b31b.

Merging on red to fix the build.

* don't disable TODO issues in IDEs

* minor change to start cirrus

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.

Revert "Turn on line wrapping in usage and status messages, adds ANSI color to doctor and analysis messages. (#22656)" (#22759)

This reverts commit e4386321
because it breaks 160 benchmarks, and several devicelab tests,
due to changing the format of the output.