* fuchsia_remote_debug_protocol allows open port on remote device

Allows defining a port forwarding function for which the accessible
port is not on the host device. Examples include tunneling solutions
where a tunneling program on the same device as the Dart VM exposes
an open port through which it tunnels connections to the VM.

* Move ssh-specific comment to SshPortForwarder

* Adds a new web benchmark bench_mouse_region_mixed_grid_hover

Bug fix where MouseScrollWheel zoom in flutter-web does not execute onInteraction functions (#65313)

This reverts commit ccd4f6dd.

983b0ef16 Roll Dart SDK from 1abce6d054ad to 14f1940f537e (1 revision) (flutter/engine#21092) (#65639)

This change disables a failing test prevent PR #20385 from merging.

This reverts commit adc5f26b.

* [gen_l10n] Support string list as preferred-supported-locales, as documented.

* [gen_l10n] Convert preferredSupportedLocale to a list of strings. 

* [gen_l10n] Accept a multi option instead of a json string in the command line.

The Windows plugin CMake generation had code to ensure that the paths
written to it used POSIX separators, but the Linux version didn't; that
meant that plugin updates run on Windows machines would corrupt the
generated (but checked in) Linux CMake file.

This change shares that code so that both will use POSIX paths
regardless of what OS they are generated on.

Fixes https://github.com/flutter/flutter/issues/64591

* [flutter_tools] alternate the name of the dill file used for hot restart

* switch alternative name to .swap

Removes global variables and adds unit tests that can be copied for #65118