Changed tool cached properties to late finals (#88923)

packages/flutter_tools/lib/src/android/android_sdk.dart

@@ -169,8 +169,7 @@ class AndroidSdk {
 
   AndroidSdkVersion? get latestVersion => _latestVersion;
 
-  String? get adbPath => _adbPath ??= getPlatformToolsPath(globals.platform.isWindows ? 'adb.exe' : 'adb');
-  String? _adbPath;
+  late final String? adbPath = getPlatformToolsPath(globals.platform.isWindows ? 'adb.exe' : 'adb');
 
   String? get emulatorPath => getEmulatorPath();
 

packages/flutter_tools/lib/src/cache.dart

@@ -163,8 +163,7 @@ class Cache {
   final Net _net;
   final FileSystemUtils _fsUtils;
 
-  ArtifactUpdater get _artifactUpdater => __artifactUpdater ??= _createUpdater();
-  ArtifactUpdater? __artifactUpdater;
+  late final ArtifactUpdater _artifactUpdater = _createUpdater();
 
   @protected
   void registerArtifact(ArtifactSet artifactSet) {

packages/flutter_tools/lib/src/cmake_project.dart

@@ -97,13 +97,11 @@ class WindowsUwpProject extends WindowsProject {
   int? get projectVersion => int.tryParse(_editableDirectory.childFile('project_version').readAsStringSync());
 
   /// Retrieve the GUID of the UWP package.
-  String? get packageGuid => _packageGuid ??= getCmakePackageGuid(runnerCmakeFile);
-  String? _packageGuid;
+  late final String? packageGuid = getCmakePackageGuid(runnerCmakeFile);
 
   File get appManifest => _editableDirectory.childDirectory('runner_uwp').childFile('appxmanifest.in');
 
-  String? get packageVersion => _packageVersion ??= parseAppVersion(this);
-  String? _packageVersion;
+  late final String? packageVersion = parseAppVersion(this);
 }
 
 @visibleForTesting

packages/flutter_tools/lib/src/ios/mac.dart

@@ -50,8 +50,7 @@ class IMobileDevice {
   final ProcessManager _processManager;
   final ProcessUtils _processUtils;
 
-  bool get isInstalled => _isInstalled ??= _processManager.canRun(_idevicescreenshotPath);
-  bool? _isInstalled;
+  late final bool isInstalled = _processManager.canRun(_idevicescreenshotPath);
 
   /// Starts `idevicesyslog` and returns the running process.
   Future<Process> startLogger(String deviceID) {

packages/flutter_tools/lib/src/platform_plugins.dart

@@ -106,10 +106,8 @@ class AndroidPlugin extends PluginPlatform {
     };
   }
 
-  Set<String>? _cachedEmbeddingVersion;
-
   /// Returns the version of the Android embedding.
-  Set<String> get _supportedEmbeddings => _cachedEmbeddingVersion ??= _getSupportedEmbeddings();
+  late final Set<String> _supportedEmbeddings = _getSupportedEmbeddings();
 
   Set<String> _getSupportedEmbeddings() {
     assert(pluginPath != null);

packages/flutter_tools/lib/src/project.dart

@@ -163,36 +163,28 @@ class FlutterProject {
   }
 
   /// The iOS sub project of this project.
-  IosProject? _ios;
-  IosProject get ios => _ios ??= IosProject.fromFlutter(this);
+  late final IosProject ios = IosProject.fromFlutter(this);
 
   /// The Android sub project of this project.
-  AndroidProject? _android;
-  AndroidProject get android => _android ??= AndroidProject._(this);
+  late final AndroidProject android = AndroidProject._(this);
 
   /// The web sub project of this project.
-  WebProject? _web;
-  WebProject get web => _web ??= WebProject._(this);
+  late final WebProject web = WebProject._(this);
 
   /// The MacOS sub project of this project.
-  MacOSProject? _macos;
-  MacOSProject get macos => _macos ??= MacOSProject.fromFlutter(this);
+  late final MacOSProject macos = MacOSProject.fromFlutter(this);
 
   /// The Linux sub project of this project.
-  LinuxProject? _linux;
-  LinuxProject get linux => _linux ??= LinuxProject.fromFlutter(this);
+  late final LinuxProject linux = LinuxProject.fromFlutter(this);
 
   /// The Windows sub project of this project.
-  WindowsProject? _windows;
-  WindowsProject get windows => _windows ??= WindowsProject.fromFlutter(this);
+  late final WindowsProject windows = WindowsProject.fromFlutter(this);
 
   /// The Windows UWP sub project of this project.
-  WindowsUwpProject? _windowUwp;
-  WindowsUwpProject get windowsUwp => _windowUwp ??= WindowsUwpProject.fromFlutter(this);
+  late final WindowsUwpProject windowsUwp = WindowsUwpProject.fromFlutter(this);
 
   /// The Fuchsia sub project of this project.
-  FuchsiaProject? _fuchsia;
-  FuchsiaProject get fuchsia => _fuchsia ??= FuchsiaProject._(this);
+  late final FuchsiaProject fuchsia = FuchsiaProject._(this);
 
   /// The `pubspec.yaml` file of this project.
   File get pubspecFile => directory.childFile('pubspec.yaml');
@@ -414,8 +406,7 @@ class AndroidProject extends FlutterProjectPlatform {
   bool get usesAndroidX => parent.usesAndroidX;
 
   /// Returns true if the current version of the Gradle plugin is supported.
-  bool get isSupportedVersion => _isSupportedVersion ??= _computeSupportedVersion();
-  bool? _isSupportedVersion;
+  late final bool isSupportedVersion = _computeSupportedVersion();
 
   bool _computeSupportedVersion() {
     final FileSystem fileSystem = hostAppGradleRoot.fileSystem;

packages/flutter_tools/lib/src/test/font_config_manager.dart

@@ -10,15 +10,10 @@ import '../globals_null_migrated.dart' as globals;
 /// Manages a Font configuration that can be shared across multiple tests.
 class FontConfigManager {
   Directory? _fontsDirectory;
-  File? _cachedFontConfig;
 
   /// Returns a Font configuration that limits font fallback to the artifact
   /// cache directory.
-  File get fontConfigFile {
-    if (_cachedFontConfig != null) {
-      return _cachedFontConfig!;
-    }
-
+  late final File fontConfigFile = (){
     final StringBuffer sb = StringBuffer();
     sb.writeln('<fontconfig>');
     sb.writeln('  <dir>${globals.cache.getCacheArtifacts().path}</dir>');
@@ -30,11 +25,11 @@ class FontConfigManager {
       globals.printTrace('Using this directory for fonts configuration: ${_fontsDirectory!.path}');
     }
 
-    _cachedFontConfig = globals.fs.file('${_fontsDirectory!.path}/fonts.conf');
-    _cachedFontConfig!.createSync();
-    _cachedFontConfig!.writeAsStringSync(sb.toString());
-    return _cachedFontConfig!;
-  }
+    final File cachedFontConfig = globals.fs.file('${_fontsDirectory!.path}/fonts.conf');
+    cachedFontConfig.createSync();
+    cachedFontConfig.writeAsStringSync(sb.toString());
+    return cachedFontConfig;
+  }();
 
   Future<void> dispose() async {
     if (_fontsDirectory != null) {

packages/flutter_tools/lib/src/windows/visual_studio.dart

@@ -348,11 +348,7 @@ class VisualStudio {
   ///
   /// If no installation is found, the cached VS details are set to an empty map
   /// to avoid repeating vswhere queries that have already not found an installation.
-  Map<String, dynamic>? _cachedUsableVisualStudioDetails;
-  Map<String, dynamic> get _usableVisualStudioDetails {
-    if (_cachedUsableVisualStudioDetails != null) {
-      return _cachedUsableVisualStudioDetails!;
-    }
+  late final Map<String, dynamic> _usableVisualStudioDetails = (){
     final List<String> minimumVersionArguments = <String>[
       _vswhereMinVersionArgument,
       _minimumSupportedVersion.toString(),
@@ -370,16 +366,16 @@ class VisualStudio {
       }
     }
 
+    Map<String, dynamic>? usableVisualStudioDetails;
     if (visualStudioDetails != null) {
       if (installationHasIssues(visualStudioDetails)) {
         _cachedAnyVisualStudioDetails = visualStudioDetails;
       } else {
-        _cachedUsableVisualStudioDetails = visualStudioDetails;
+        usableVisualStudioDetails = visualStudioDetails;
       }
     }
-    _cachedUsableVisualStudioDetails ??= <String, dynamic>{};
-    return _cachedUsableVisualStudioDetails!;
-  }
+    return usableVisualStudioDetails ?? <String, dynamic>{};
+  }();
 
   /// Returns the details dictionary of the latest version of Visual Studio,
   /// regardless of components and version, or {} if no such installation is