Extracted from https://github.com/flutter/flutter/pull/36205

* use sentence case in error message titles

* add a test

https://github.com/flutter/engine/compare/849fe7317031...9e9da56b8923

git log 849fe7317031bb8f59b54999029f507185d2fb0f..9e9da56b8923f2bcec6ba91ee2b1d3e4affebdca --no-merges --oneline
9e9da56b8 [luci] Reference the right fuchsia CIPD and upload only once (flutter/engine#9998)
d1cba30a7 Roll src/third_party/skia 7c01208e7800..ebab03ffbffb (1 commits) (flutter/engine#9997)
8855ffd8e Roll fuchsia/sdk/core/linux-amd64 from Kxwo4klJ1u6vmb1zw43v_h5lyPM-BvaHEdTQpXJCfakC to FBDZ1EXEOcpLsJY4a5JRok5wPvXm5SURbJw1V7lpfKUC (flutter/engine#9996)
1b6ee8c27 Roll src/third_party/skia ba35d079524b..7c01208e7800 (1 commits) (flutter/engine#9995)

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Plus:

- Resume the app being run after expression has been evaluated to prevent the test run being forcefully terminated because it didn't end
- Skip non-JSON when waiting for JSON (eg. when running in verbose mode for debugging locally)
- Pass defaultTimeout in waitForJson (otherwise the assert in _timeoutWithMessages fails when it's not provided)

Closes https://github.com/flutter/flutter/issues/26518 (the original reason for skip was fixed in https://github.com/dart-lang/sdk/issues/34224).

Made the Flutter Gallery use the new ThemeMode property so that it can
use the system's dark/light mode setting by default.

* Add images and update examples for top widgets:

  - scaffold
  - text field
  - image
  - text
  - row
  - column
  - stack

849fe7317 Roll fuchsia/sdk/core/linux-amd64 from LzAZ73b7HYPMtDJnxjnYwMBuiVP6TsVmWIQb9xud4MEC to Kxwo4klJ1u6vmb1zw43v_h5lyPM-BvaHEdTQpXJCfakC (flutter/engine#9994) (#36672)


https://github.com/flutter/engine/compare/c7ed23a7567d...849fe7317031

git log c7ed23a7567d723554500d01f1226ced6db3dffe..849fe7317031bb8f59b54999029f507185d2fb0f --no-merges --oneline
849fe7317 Roll fuchsia/sdk/core/linux-amd64 from LzAZ73b7HYPMtDJnxjnYwMBuiVP6TsVmWIQb9xud4MEC to Kxwo4klJ1u6vmb1zw43v_h5lyPM-BvaHEdTQpXJCfakC (flutter/engine#9994)

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https://github.com/flutter/engine/compare/ea4654a30b06...c7ed23a7567d

git log ea4654a30b0625d701fd42bbcc2743794d7a47ce..c7ed23a7567d723554500d01f1226ced6db3dffe --no-merges --oneline
c7ed23a75 Roll src/third_party/skia 056bdda97a83..ba35d079524b (5 commits) (flutter/engine#9992)
b384ce8f5 Roll fuchsia/sdk/core/linux-amd64 from 3y8oGujcy9aTj2lCGSzNVsho-P-bpHKb232KAEfVeUkC to LzAZ73b7HYPMtDJnxjnYwMBuiVP6TsVmWIQb9xud4MEC (flutter/engine#9990)

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ea4654a30 Update GN to git_revision:152c5144ceed9592c20f0c8fd55769646077569b (flutter/engine#9987) (#36657)


https://github.com/flutter/engine/compare/5b7c0089e3ca...ea4654a30b06

git log 5b7c0089e3caeaa5d118530c2cf17470214bf4c0..ea4654a30b0625d701fd42bbcc2743794d7a47ce --no-merges --oneline
ea4654a30 Update GN to git_revision:152c5144ceed9592c20f0c8fd55769646077569b (flutter/engine#9987)

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This reverts commit bd52a78c.

5b7c0089e Roll fuchsia/sdk/core/linux-amd64 from XblLr-Z5sgUUhC-LBbHZvqPJ6_WU8TvGqp0iWXzqs7sC to 3y8oGujcy9aTj2lCGSzNVsho-P-bpHKb232KAEfVeUkC (flutter/engine#9982) (#36650)


https://github.com/flutter/engine/compare/576fea92a5fd...5b7c0089e3ca

git log 576fea92a5fda023bfdc2639f5cca1821d342cdb..5b7c0089e3caeaa5d118530c2cf17470214bf4c0 --no-merges --oneline
5b7c0089e Roll fuchsia/sdk/core/linux-amd64 from XblLr-Z5sgUUhC-LBbHZvqPJ6_WU8TvGqp0iWXzqs7sC to 3y8oGujcy9aTj2lCGSzNVsho-P-bpHKb232KAEfVeUkC (flutter/engine#9982)

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https://github.com/flutter/engine/compare/fc68f6abc2a5...576fea92a5fd

git log fc68f6abc2a5bcb289357883998dc1760408fc7c..576fea92a5fda023bfdc2639f5cca1821d342cdb --no-merges --oneline
576fea92a Roll fuchsia/sdk/core/linux-amd64 from NyebqfNgs14SKX5MfRRJqlYDx_SmsA0-9Y44MvmZF4cC to XblLr-Z5sgUUhC-LBbHZvqPJ6_WU8TvGqp0iWXzqs7sC (flutter/engine#9981)
3e8d96bc5 Roll fuchsia/sdk/core/linux-amd64 from Xq3lmEx3UuShBJaeiufLR-fHSqxgbKzbPVFP4OwI6tYC to NyebqfNgs14SKX5MfRRJqlYDx_SmsA0-9Y44MvmZF4cC (flutter/engine#9980)

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https://github.com/flutter/engine/compare/1fb61b0344e8...fc68f6abc2a5

git log 1fb61b0344e86961c3a4e59b013caf02fd52a2c2..fc68f6abc2a5bcb289357883998dc1760408fc7c --no-merges --oneline
fc68f6abc Roll fuchsia/sdk/core/linux-amd64 from aS7wbI2Khbg1tZ8OnisA3S1_MkmHezyAxHTYXPPjlaIC to Xq3lmEx3UuShBJaeiufLR-fHSqxgbKzbPVFP4OwI6tYC (flutter/engine#9979)
bc774f914 Roll src/third_party/skia efe259bb2afd..056bdda97a83 (2 commits) (flutter/engine#9978)

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1fb61b034 Roll fuchsia/sdk/core/linux-amd64 from OTgeiyD91rvjon5gklfSkUzti5kkQ4criJqpiDhoe7IC to aS7wbI2Khbg1tZ8OnisA3S1_MkmHezyAxHTYXPPjlaIC (flutter/engine#9976) (#36630)


https://github.com/flutter/engine/compare/9196576e3a5c...1fb61b0344e8

git log 9196576e3a5cbf3c83afca4df9a7be59eb39080a..1fb61b0344e86961c3a4e59b013caf02fd52a2c2 --no-merges --oneline
1fb61b034 Roll fuchsia/sdk/core/linux-amd64 from OTgeiyD91rvjon5gklfSkUzti5kkQ4criJqpiDhoe7IC to aS7wbI2Khbg1tZ8OnisA3S1_MkmHezyAxHTYXPPjlaIC (flutter/engine#9976)

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https://github.com/flutter/engine/compare/cd1d7d639937...9196576e3a5c

git log cd1d7d639937aaa31e63de62a4012a877616dcae..9196576e3a5cbf3c83afca4df9a7be59eb39080a --no-merges --oneline
9196576e3 Roll fuchsia/sdk/core/linux-amd64 from w8MJpcP6-8lOFwkD9oHTR0ha9RvKibpSrN6F-ulwH88C to OTgeiyD91rvjon5gklfSkUzti5kkQ4criJqpiDhoe7IC (flutter/engine#9974)
d7a52516e Roll fuchsia/sdk/core/linux-amd64 from gKsp5vROpSRBvxFeqWLrcxbN-CPGrh8jd8JV4wyPpowC to w8MJpcP6-8lOFwkD9oHTR0ha9RvKibpSrN6F-ulwH88C (flutter/engine#9973)

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This reverts commit b61fcfd2.

cd1d7d639 Roll src/third_party/skia a7ad120fb6c1..efe259bb2afd (1 commits) (flutter/engine#9972) (#36620)


https://github.com/flutter/engine/compare/483199060230...cd1d7d639937

git log 48319906023084cbe8c01cc207651ee89c37e871..cd1d7d639937aaa31e63de62a4012a877616dcae --no-merges --oneline
cd1d7d639 Roll src/third_party/skia a7ad120fb6c1..efe259bb2afd (1 commits) (flutter/engine#9972)

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https://github.com/flutter/engine/compare/325f5b66dcc0...483199060230

git log 325f5b66dcc0d32ed344a3d8555572c2fb995dc1..48319906023084cbe8c01cc207651ee89c37e871 --no-merges --oneline
483199060 Roll fuchsia/sdk/core/linux-amd64 from Hi1zcJ3r59vNGXdA57i6fhuAk02Af8p5BHwvj45cCnIC to gKsp5vROpSRBvxFeqWLrcxbN-CPGrh8jd8JV4wyPpowC (flutter/engine#9971)
e7245cd7b Roll fuchsia/sdk/core/linux-amd64 from 8TNm8LtekvIJNYrWK9JBsM3qONKGYnyHufXhidbBKWsC to Hi1zcJ3r59vNGXdA57i6fhuAk02Af8p5BHwvj45cCnIC (flutter/engine#9969)
2c071370a Roll src/third_party/skia be91f062d70e..a7ad120fb6c1 (3 commits) (flutter/engine#9968)

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https://github.com/flutter/engine/compare/9cf13568e2aa...325f5b66dcc0

git log 9cf13568e2aa1f9ab37445037e2ef54ecb5146f8..325f5b66dcc0d32ed344a3d8555572c2fb995dc1 --no-merges --oneline
325f5b66d Roll fuchsia/sdk/core/linux-amd64 from i5kNl7ZKu6X9AqpFLP4d5vDqQ4k9CtaQIk3x3WLVFxMC to 8TNm8LtekvIJNYrWK9JBsM3qONKGYnyHufXhidbBKWsC (flutter/engine#9967)
fe0ffc7f6 Roll fuchsia/sdk/core/linux-amd64 from LNYN3mEv2NJLUmZf6nGD5IWqOjDDiXpPeV2l4YWI0j8C to i5kNl7ZKu6X9AqpFLP4d5vDqQ4k9CtaQIk3x3WLVFxMC (flutter/engine#9966)
0ac94f75a Roll fuchsia/sdk/core/linux-amd64 from Hjo8G2HMO-S2RkQO8NOJNFH9t9QlspYq810NONDB8e0C to LNYN3mEv2NJLUmZf6nGD5IWqOjDDiXpPeV2l4YWI0j8C (flutter/engine#9964)
8fda1c99b Fix return type of assert function in gradient_test (flutter/engine#9961)
79bb7a583 Roll fuchsia/sdk/core/linux-amd64 from yCNSGMzcBMQzda_aHXqXWoW1cLSen0AL64orTFH-qHcC to Hjo8G2HMO-S2RkQO8NOJNFH9t9QlspYq810NONDB8e0C (flutter/engine#9960)
736c28b35 Update Dart engine tests to check for assertion failures only when running in debug mode (flutter/engine#9959)
b56e1ad79 Roll src/third_party/skia 4a13119a60e2..be91f062d70e (3 commits) (flutter/engine#9956)
61e2ba1db Roll src/third_party/dart 63120303a7...a089199b93 (flutter/engine#9951)
da0fcf828 Updates to the engine test runner script (flutter/engine#9934)

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https://github.com/flutter/engine/compare/5467f6f63046...9cf13568e2aa

git log 5467f6f63046620b0ef1edc72ae06f9fad941cee..9cf13568e2aa1f9ab37445037e2ef54ecb5146f8 --no-merges --oneline
9cf13568e Added hasRenderedFirstFrame() to old FlutterView for Espresso (#36211). (flutter/engine#9939)
8d28215c8 Fix caching of Locale.toString (flutter/engine#9920)
b1276efa7 Roll fuchsia/sdk/core/linux-amd64 from kKw24ZxMzd4Hx6mCaVBSxBJxx7wIKmxP8txe9Cp0dxIC to yCNSGMzcBMQzda_aHXqXWoW1cLSen0AL64orTFH-qHcC (flutter/engine#9955)
649e025f7 Removed PlatformViewsController if-statements from TextInputPlugin (#34286). (flutter/engine#9938)
ede88d7df Roll src/third_party/skia aa861a1907a1..4a13119a60e2 (9 commits) (flutter/engine#9950)
48b1340ad Fix the geometry test to reflect that OffsetBase comparison operators are a partial ordering (flutter/engine#9925)
971c3f24a Roll fuchsia/sdk/core/linux-amd64 from XG_fYb35A8mJpnMG_I9iBm7yHJyNZYZRgG69a88us_sC to kKw24ZxMzd4Hx6mCaVBSxBJxx7wIKmxP8txe9Cp0dxIC (flutter/engine#9947)
3d7f93a2e Removed logic from FlutterAppDelegate into FlutterPluginAppLifeCycleDelegate (flutter/engine#9893)
273f4cfe8 Split out lifecycle protocol (flutter/engine#9922)
f41be3ea6 Roll src/third_party/skia 58d1f76fc008..aa861a1907a1 (7 commits) (flutter/engine#9946)
53f620f45 [platform view] do not make clipping view and interceptor view clipToBounds (flutter/engine#9937)
a1faebb8f Roll fuchsia/sdk/core/linux-amd64 from IPgI5Uh4rIZ4zNfAV1_ynC4dGmFLexAW1L9czHUyjowC to XG_fYb35A8mJpnMG_I9iBm7yHJyNZYZRgG69a88us_sC (flutter/engine#9945)
309ad63e6 Roll src/third_party/skia 95528752e2bd..58d1f76fc008 (1 commits) (flutter/engine#9944)
d852e8a64 Roll src/third_party/skia 19547c91b983..95528752e2bd (1 commits) (flutter/engine#9943)

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This is for the missed comment in
https://github.com/flutter/flutter/pull/36089#discussion_r303960949