This reverts commit 4fde217d.

They appear to be passing now.

Almost all of the flag setup on Linux, macOS, and Windows should be
identical; this pulls that common setup to a shared method.

This adds support for several flags on macOS that have all the necessary
plumbing already in place due to shared backend code, but were never
enabled.

Fixes https://github.com/flutter/flutter/issues/64944

Fix typo.

People frequently assume they can run the executable they find at the
top level of the build directory, and don't understand why they get
resource errors from the engine. To avoid that, this puts the unbundled
copy of the executable in a subdirectory with a name that should warn
people away from running it.

Fixes #64963

This reverts commit df833986.

[flutter_tools] adjust index.html caching and insert cache busting URL in to main.dart.js/sw request (#64976)

Attempt to bypass aggressive CDN by requesting main.dart.js/sw.js with a query param and defaulting index.html to online first. This will not stop aggressive CDN caching of the index.html

#64968

This reverts commit c8f234d3.

More work towards #62886

This is no longer used, in favor of just attempting to unzip and handling the exception.

Previous benchmarks have established the performance of sync*. Additionally, why allocate a list when you don't need to? Since these APIs are private, they can be re-arranged a bit to avoid creating as many lists. Will probably not have a large effect on benchmarks

Exit the tool after a repeated network error to download. previously we were returning null and continuing on, leading to a ProcessException when we unzipped a missing file.

This reverts commit 2436de13.

b/150295238 has been resolved for a while now.

add different workload & add -products * to vswhere calls to check both Visual Studio IDE and standalone Build Tools. (#64251)