Update MigratingTo1.11.md

Support swift-syntax from 600.0.0-latest (pointfreeco#3160)

* Support swift-syntax from 600.0.0-latest

The Xcode 16 beta generates macro projects using these swift-syntax
snapshots. Luckily things seem to be backwards compatible, so we can
expand our supported range.

* wip

Make `Shared.wrappedValue` setter unavailable from async and introduc…

…e `Shared.withLock` (pointfreeco#3136)

* Add withValue to Shared, deprecate direct mutation.

* updates

* wip

* wip

* wip

* wip

* Available noasync

* withLock

* clean up

* wip

* wip

* Update SyncUpsListTests.swift

* wip

* wip

* wip

* wip

* wip

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Co-authored-by: Stephen Celis <stephen@stephencelis.com>

Fix for throttle logic. (pointfreeco#3075)

Run swift-format

Revert perception availability changes (pointfreeco#3036)

Bump Perception availability (pointfreeco#3025)

* Bump Perception availability

An upstream fix to Perception needs to be applied here.

* Update ObservationStateRegistrar.swift

Run swift-format

Runtime warn for nested `observe` calls (pointfreeco#2996)

* Runtime warning when we detect nested observe.

* finesse

* wip

* add some tests

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Co-authored-by: Brandon Williams <mbrandonw@hey.com>

Update SwiftSyntax. (pointfreeco#2884)

* Update SwiftSyntax.

* wip

* fix

* wip

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Co-authored-by: Stephen Celis <stephen@stephencelis.com>