This PR is a follow up of https://github.com/flutter/flutter/pull/42640
Some changes of that PR includes redundant changes using FlutterError.fromParts constructor even though it's not necessary.

Some minor changes are:

- Remove one unnecessary todo
- Fix indent consistencies

This reverts commit 0a623e87.

Weaken stack-trace based tests to allow auto-roll of new engine which will change the format (#51047)

Follow-up PR will restore those tests with new expectations:
https://github.com/flutter/flutter/pull/50760

This reverts commit a51de38a because it breaks the flutter docs.

* c0549fbf7 Roll buildroot. (flutter/engine#16613)

* 8b0b6490e improve surface state assert error messages (flutter/engine#16595)

* cd77e7843 Fix drawRRect failure when shader is specified (flutter/engine#16601)

* fe63094d5 [web] Handle alignment correctly in Paragraph.getPositionForOffset (flutter/engine#16569)

* 65d112677 [web] Fixing launching Safari. This should solve the LUCI issue (flutter/engine#16590)

* f88f7df96 [web] Unskip tests that are already passing in Safari (flutter/engine#16567)

* 594f66082 [shell tests] Integrate Vulkan with Shell Tests

* 400ed7ceb Revert "[shell tests] Integrate Vulkan with Shell Tests"

* 15e7f51b3 Implement Path extractPath, tangent APIs (flutter/engine#16599)

* 4941ff7bf Remove usage of Dart_AllocateWithNativeFields from tonic (flutter/engine#16588)

* bb01cb7fa Roll fuchsia/sdk/core/linux-amd64 from Bmq1m... to J-_s6... (flutter/engine#16592)

This reverts commit e4fbb1ab.

* Avoid including a potentially animated invisible image

This reverts commit d3387bc9.