[various] Standardize the extension for Pigeon-generated Dart (#7029)

* Standardize on .g.dart

* Remove unused exclusion patterns

* Mark pigeons/ as dev-only in the tooling

* Version bumps

* Add missed files

* More new import fixes

Author: stuartmorgan-g

analysis_options.yaml

@@ -47,9 +47,7 @@ analyzer:
   exclude:
     # Ignore generated files
     - '**/*.g.dart'
-    - 'lib/src/generated/*.dart'
     - '**/*.mocks.dart' # Mockito @GenerateMocks
-    - '**/*.pigeon.dart' # Pigeon generated file
 
 linter:
   rules:

packages/camera/camera_android_camerax/lib/src/android_camera_camerax_flutter_api_impls.dart

@@ -5,7 +5,7 @@
 import 'camera.dart';
 import 'camera_info.dart';
 import 'camera_selector.dart';
-import 'camerax_library.pigeon.dart';
+import 'camerax_library.g.dart';
 import 'java_object.dart';
 import 'process_camera_provider.dart';
 import 'system_services.dart';

packages/camera/camera_android_camerax/lib/src/camera.dart

@@ -5,7 +5,7 @@
 import 'package:flutter/services.dart' show BinaryMessenger;
 
 import 'android_camera_camerax_flutter_api_impls.dart';
-import 'camerax_library.pigeon.dart';
+import 'camerax_library.g.dart';
 import 'instance_manager.dart';
 import 'java_object.dart';
 

packages/camera/camera_android_camerax/lib/src/camera_info.dart

@@ -5,7 +5,7 @@
 import 'package:flutter/services.dart' show BinaryMessenger;
 
 import 'android_camera_camerax_flutter_api_impls.dart';
-import 'camerax_library.pigeon.dart';
+import 'camerax_library.g.dart';
 import 'instance_manager.dart';
 import 'java_object.dart';
 

packages/camera/camera_android_camerax/lib/src/camera_selector.dart

@@ -6,7 +6,7 @@ import 'package:flutter/services.dart';
 
 import 'android_camera_camerax_flutter_api_impls.dart';
 import 'camera_info.dart';
-import 'camerax_library.pigeon.dart';
+import 'camerax_library.g.dart';
 import 'instance_manager.dart';
 import 'java_object.dart';
 

packages/camera/camera_android_camerax/lib/src/camerax_library.pigeon.dart renamed to packages/camera/camera_android_camerax/lib/src/camerax_library.g.dart

@@ -5,7 +5,7 @@
 import 'package:flutter/foundation.dart' show immutable;
 import 'package:flutter/services.dart';
 
-import 'camerax_library.pigeon.dart';
+import 'camerax_library.g.dart';
 import 'instance_manager.dart';
 
 /// Root of the Java class hierarchy.

packages/camera/camera_android_camerax/lib/src/java_object.dart

@@ -8,7 +8,7 @@ import 'android_camera_camerax_flutter_api_impls.dart';
 import 'camera.dart';
 import 'camera_info.dart';
 import 'camera_selector.dart';
-import 'camerax_library.pigeon.dart';
+import 'camerax_library.g.dart';
 import 'instance_manager.dart';
 import 'java_object.dart';
 import 'use_case.dart';

packages/camera/camera_android_camerax/lib/src/process_camera_provider.dart

@@ -9,7 +9,7 @@ import 'package:camera_platform_interface/camera_platform_interface.dart'
 import 'package:flutter/services.dart';
 
 import 'android_camera_camerax_flutter_api_impls.dart';
-import 'camerax_library.pigeon.dart';
+import 'camerax_library.g.dart';
 
 // Ignoring lint indicating this class only contains static members
 // as this class is a wrapper for various Android system services.

packages/camera/camera_android_camerax/lib/src/system_services.dart

@@ -6,8 +6,8 @@ import 'package:pigeon/pigeon.dart';
 
 @ConfigurePigeon(
   PigeonOptions(
-    dartOut: 'lib/src/camerax_library.pigeon.dart',
-    dartTestOut: 'test/test_camerax_library.pigeon.dart',
+    dartOut: 'lib/src/camerax_library.g.dart',
+    dartTestOut: 'test/test_camerax_library.g.dart',
     dartOptions: DartOptions(copyrightHeader: <String>[
       'Copyright 2013 The Flutter Authors. All rights reserved.',
       'Use of this source code is governed by a BSD-style license that can be',