Enable private field promotion for dev (#134480)

New feature in upcoming Dart 3.2. See https://github.com/dart-lang/language/issues/2020. Feature is enabled by bumping the min SDK version to 3.2.

Part of https://github.com/flutter/flutter/issues/134476.

dev/automated_tests/pubspec.yaml

 name: flutter_automated_tests
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/benchmarks/complex_layout/pubspec.yaml

@@ -2,7 +2,7 @@ name: complex_layout
 description: A benchmark of a relatively complex layout.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/benchmarks/macrobenchmarks/pubspec.yaml

@@ -2,7 +2,7 @@ name: macrobenchmarks
 description: Performance benchmarks using flutter drive.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/benchmarks/microbenchmarks/pubspec.yaml

@@ -2,7 +2,7 @@ name: microbenchmarks
 description: Small benchmarks for very specific parts of the Flutter framework.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   meta: 1.9.1

dev/benchmarks/multiple_flutters/module/pubspec.yaml

@@ -4,7 +4,7 @@ description: A module that is embedded in the multiple_flutters benchmark test.
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/benchmarks/platform_channels_benchmarks/pubspec.yaml

@@ -5,7 +5,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/benchmarks/platform_views_layout/pubspec.yaml

@@ -2,7 +2,7 @@ name: platform_views_layout
 description: A benchmark for platform views.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/benchmarks/platform_views_layout_hybrid_composition/pubspec.yaml

@@ -2,7 +2,7 @@ name: platform_views_layout_hybrid_composition
 description: A benchmark for platform views, using hybrid composition on android.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/benchmarks/test_apps/stocks/pubspec.yaml

 name: stocks
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/bots/analyze_snippet_code.dart

@@ -515,14 +515,14 @@ class _SnippetChecker {
   /// Returns true if any errors are found, false otherwise.
   Future<bool> checkSnippets() async {
     final Map<String, _SnippetFile> snippets = <String, _SnippetFile>{};
-    if (_dartUiLocation != null && !_dartUiLocation!.existsSync()) {
-      stderr.writeln('Unable to analyze engine dart snippets at ${_dartUiLocation!.path}.');
+    if (_dartUiLocation != null && !_dartUiLocation.existsSync()) {
+      stderr.writeln('Unable to analyze engine dart snippets at ${_dartUiLocation.path}.');
     }
     final List<File> filesToAnalyze = <File>[
       for (final Directory flutterPackage in _flutterPackages)
         ..._listDartFiles(flutterPackage, recursive: true),
-      if (_dartUiLocation != null && _dartUiLocation!.existsSync())
-        ..._listDartFiles(_dartUiLocation!, recursive: true),
+      if (_dartUiLocation != null && _dartUiLocation.existsSync())
+        ..._listDartFiles(_dartUiLocation, recursive: true),
     ];
     final Set<Object> errors = <Object>{};
     errors.addAll(await _extractSnippets(filesToAnalyze, snippetMap: snippets));

dev/bots/pubspec.yaml

@@ -2,7 +2,7 @@ name: tests_on_bots
 description: Scripts which run on bots.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   args: 2.4.2

dev/conductor/core/pubspec.yaml

@@ -4,7 +4,7 @@ description: Flutter Automated Release Tool
 publish_to: none
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   archive: 3.3.2

dev/customer_testing/pubspec.yaml

@@ -2,7 +2,7 @@ name: customer_testing
 description: Tool to run the tests listed in the flutter/tests repository.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   args: 2.4.2

dev/devicelab/bin/tasks/plugin_dependencies_test.dart

@@ -101,7 +101,7 @@ dependencies:
     sdk: flutter
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
   flutter: ">=1.5.0"
 ''', flush: true);
 

dev/devicelab/pubspec.yaml

@@ -3,7 +3,7 @@ description: Flutter continuous integration performance and correctness tests.
 homepage: https://github.com/flutter/flutter
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   archive: 3.3.2

dev/docs/platform_integration/pubspec.yaml

 name: platform_integration
 
 environment:
-  sdk: '>=2.19.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'

dev/docs/renderers/pubspec.yaml

 name: renderers
 
 environment:
-  sdk: '>=2.19.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'

dev/forbidden_from_release_tests/pubspec.yaml

@@ -2,7 +2,7 @@ name: forbidden_from_release_tests
 publish_to: 'none'
 
 environment:
-  sdk: '>=2.19.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   args: 2.4.2

dev/integration_tests/abstract_method_smoke_test/pubspec.yaml

@@ -4,7 +4,7 @@ description: A new Flutter project.
 version: 1.0.0+1
 
 environment:
-  sdk: '>=2.19.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/android_embedding_v2_smoke_test/pubspec.yaml

@@ -14,7 +14,7 @@ description: A new Flutter project.
 version: 1.0.0+1
 
 environment:
-  sdk: '>=2.19.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/android_semantics_testing/pubspec.yaml

 name: android_semantics_testing
 description: Integration testing library for Android semantics
 environment:
-  sdk: '>=2.19.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/android_views/lib/motion_events_page.dart

@@ -236,7 +236,6 @@ class MotionEventsBodyState extends State<MotionEventsBody> {
           flutterViewEvents.removeLast();
         }
         setState(() {});
-        break;
     }
     return Future<dynamic>.value();
   }
@@ -250,7 +249,6 @@ class MotionEventsBodyState extends State<MotionEventsBody> {
           embeddedViewEvents.removeLast();
         }
         setState(() {});
-        break;
     }
     return Future<dynamic>.value();
   }

dev/integration_tests/android_views/pubspec.yaml

@@ -4,7 +4,7 @@ publish_to: none
 description: An integration test for embedded platform views
 version: 1.0.0+1
 environment:
-  sdk: '>=2.19.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/channels/pubspec.yaml

@@ -2,7 +2,7 @@ name: channels
 description: Integration test for platform channels.
 
 environment:
-  sdk: '>=2.19.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/deferred_components_test/pubspec.yaml

@@ -3,7 +3,7 @@ description: Integration test application for basic deferred components function
 publish_to: 'none'
 version: 1.0.0+1
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/external_ui/pubspec.yaml

@@ -2,7 +2,7 @@ name: external_ui
 description: A test of Flutter integrating external UIs.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/flavors/pubspec.yaml

@@ -2,7 +2,7 @@ name: flavors
 description: Integration test for build flavors.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/flutter_gallery/pubspec.yaml

 name: flutter_gallery
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/gradle_deprecated_settings/pubspec.yaml

@@ -2,7 +2,7 @@ name: gradle_deprecated_settings
 description: Integration test for the current settings.gradle.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/hybrid_android_views/pubspec.yaml

@@ -4,7 +4,7 @@ publish_to: none
 description: An integration test for hybrid composition on Android
 version: 1.0.0+1
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/ios_add2app_life_cycle/flutterapp/pubspec.yaml

@@ -14,7 +14,7 @@ description: A new flutter module project.
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/ios_app_with_extensions/pubspec.yaml

@@ -13,7 +13,7 @@ name: ios_app_with_extensions
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/ios_platform_view_tests/pubspec.yaml

@@ -3,7 +3,7 @@ name: ios_platform_view_tests
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/non_nullable/pubspec.yaml

@@ -5,7 +5,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/platform_interaction/pubspec.yaml

@@ -2,7 +2,7 @@ name: platform_interaction
 description: Integration test for platform interactions.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/release_smoke_test/pubspec.yaml

 name: release_smoke_test
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/spell_check/pubspec.yaml

@@ -18,7 +18,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 # Dependencies specify other packages that your package needs in order to work.
 # To automatically upgrade your package dependencies to the latest versions

dev/integration_tests/ui/pubspec.yaml

@@ -2,7 +2,7 @@ name: integration_ui
 description: Flutter non-plugin UI integration tests.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/web/pubspec.yaml

@@ -2,7 +2,7 @@ name: web_integration
 description: Integration test for web compilation.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 flutter:
   assets:

dev/integration_tests/web_compile_tests/pubspec.yaml

 name: web_compile_tests
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/web_e2e_tests/pubspec.yaml

@@ -2,7 +2,7 @@ name: web_e2e_tests
 publish_to: none
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 flutter:
   assets:

dev/integration_tests/wide_gamut_test/pubspec.yaml

@@ -5,7 +5,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/integration_tests/windows_startup_test/pubspec.yaml

@@ -2,7 +2,7 @@ name: windows_startup_test
 description: Integration test for Windows app's startup.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/manual_tests/pubspec.yaml

 name: manual_tests
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/missing_dependency_tests/pubspec.yaml

 name: missing_dependency_tests
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter:

dev/tools/create_api_docs.dart

@@ -250,7 +250,7 @@ class Configurator {
       'homepage: https://flutter.dev',
       'version: 0.0.0',
       'environment:',
-      "  sdk: '>=3.0.0-0 <4.0.0'",
+      "  sdk: '>=3.2.0-0 <4.0.0'",
       'dependencies:',
       for (final String package in findPackageNames(filesystem)) '  $package:\n    sdk: flutter',
       '  $kPlatformIntegrationPackageName: 0.0.1',

dev/tools/gen_defaults/pubspec.yaml

@@ -3,7 +3,7 @@ description: A command line script to generate Material component defaults from
 version: 1.0.0
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   args: 2.4.2

dev/tools/gen_keycodes/pubspec.yaml

@@ -2,7 +2,7 @@ name: gen_keycodes
 description: Generates keycode source files from various resources.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   args: 2.4.2

dev/tools/pubspec.yaml

@@ -2,7 +2,7 @@ name: dev_tools
 description: Various repository development tools for flutter.
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   archive: 3.3.2

dev/tools/vitool/pubspec.yaml

@@ -4,7 +4,7 @@ version: 0.0.1
 homepage: https://flutter.dev
 
 environment:
-  sdk: '>=3.0.0-0 <4.0.0'
+  sdk: '>=3.2.0-0 <4.0.0'
 
 dependencies:
   flutter: