Merge remote-tracking branch 'origin/mikesposito/messenger/composable-controller' into messenger-preview-v2

* origin/mikesposito/messenger/composable-controller:
  Fix broken delegation in unit test
  Fix changelog
  update changelog and readme
  update changelog
  update tsconfig and README files
  remove .vscode folder
  add test case for child state change subscription failure
  fix: `Messenger` type errors in `ComposableController` (#6904)
  update metadata tests
  rename `anonymous` to `includeInDebugSnapshot`
  revert rename `name` to `controllerName`
  refactor: migrate `ComposableController` to `@metamask/messenger`

Author: Gudahtt

README.md

@@ -205,6 +205,7 @@ linkStyle default opacity:0.5
   chain_agnostic_permission --> network_controller;
   chain_agnostic_permission --> permission_controller;
   composable_controller --> base_controller;
+  composable_controller --> messenger;
   composable_controller --> json_rpc_engine;
   core_backend --> base_controller;
   core_backend --> controller_utils;

eslint-warning-thresholds.json

@@ -107,9 +107,6 @@
   "packages/composable-controller/src/ComposableController.test.ts": {
     "import-x/namespace": 3
   },
-  "packages/composable-controller/src/ComposableController.ts": {
-    "@typescript-eslint/no-unused-vars": 1
-  },
   "packages/controller-utils/jest.environment.js": {
     "n/prefer-global/text-encoder": 1,
     "n/prefer-global/text-decoder": 1,

packages/composable-controller/CHANGELOG.md

@@ -7,6 +7,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- **BREAKING:** Migrate `ComposableController` to new `Messenger` from `@metamask/messenger` ([#6710](https://github.com/MetaMask/core/pull/6710))
+  - Previously, the controller accepted a `RestrictedMessenger` instance from `@metamask/base-controller`.
+- **BREAKING:** Metadata property `anonymous` renamed to `includeInDebugSnapshot` ([#6710](https://github.com/MetaMask/core/pull/6710))
+
+### Fixed
+
+- Resolve incompatibility of `ChildControllerStateChangeEvents` type with `BaseController` (when used in the `Events` type argument of `ComposableControllerMessenger`) by removing unnecessary nested logic from definition ([#6904](https://github.com/MetaMask/core/pull/6904))
+  - Also update generic parameter names `ControllerName` and `ControllerState` to `ChildControllerName`, `ChildControllerState` for reduced ambiguity.
+
 ## [11.1.1]
 
 ### Changed

packages/composable-controller/package.json

@@ -47,7 +47,8 @@
     "test:watch": "NODE_OPTIONS=--experimental-vm-modules jest --watch"
   },
   "dependencies": {
-    "@metamask/base-controller": "^8.4.2"
+    "@metamask/base-controller": "^8.4.2",
+    "@metamask/messenger": "^0.3.0"
   },
   "devDependencies": {
     "@metamask/auto-changelog": "^3.4.4",