Remove force-unwraps that are no longer necessary due to improved inf…

…erence

packages/flutter_migrate/lib/src/base/context.dart

@@ -118,7 +118,7 @@ class AppContext {
   T? get<T>() {
     dynamic value = _generateIfNecessary(T, _overrides);
     if (value == null && _parent != null) {
-      value = _parent!.get<T>();
+      value = _parent.get<T>();
     }
     return _unboxNull(value ?? _generateIfNecessary(T, _fallbacks)) as T?;
   }

packages/flutter_migrate/test/src/io.dart

@@ -27,31 +27,31 @@ class FlutterIOOverrides extends io.IOOverrides {
     if (_fileSystemDelegate == null) {
       return super.createDirectory(path);
     }
-    return _fileSystemDelegate!.directory(path);
+    return _fileSystemDelegate.directory(path);
   }
 
   @override
   io.File createFile(String path) {
     if (_fileSystemDelegate == null) {
       return super.createFile(path);
     }
-    return _fileSystemDelegate!.file(path);
+    return _fileSystemDelegate.file(path);
   }
 
   @override
   io.Link createLink(String path) {
     if (_fileSystemDelegate == null) {
       return super.createLink(path);
     }
-    return _fileSystemDelegate!.link(path);
+    return _fileSystemDelegate.link(path);
   }
 
   @override
   Stream<FileSystemEvent> fsWatch(String path, int events, bool recursive) {
     if (_fileSystemDelegate == null) {
       return super.fsWatch(path, events, recursive);
     }
-    return _fileSystemDelegate!
+    return _fileSystemDelegate
         .file(path)
         .watch(events: events, recursive: recursive);
   }
@@ -61,78 +61,78 @@ class FlutterIOOverrides extends io.IOOverrides {
     if (_fileSystemDelegate == null) {
       return super.fsWatchIsSupported();
     }
-    return _fileSystemDelegate!.isWatchSupported;
+    return _fileSystemDelegate.isWatchSupported;
   }
 
   @override
   Future<FileSystemEntityType> fseGetType(String path, bool followLinks) {
     if (_fileSystemDelegate == null) {
       return super.fseGetType(path, followLinks);
     }
-    return _fileSystemDelegate!.type(path, followLinks: followLinks);
+    return _fileSystemDelegate.type(path, followLinks: followLinks);
   }
 
   @override
   FileSystemEntityType fseGetTypeSync(String path, bool followLinks) {
     if (_fileSystemDelegate == null) {
       return super.fseGetTypeSync(path, followLinks);
     }
-    return _fileSystemDelegate!.typeSync(path, followLinks: followLinks);
+    return _fileSystemDelegate.typeSync(path, followLinks: followLinks);
   }
 
   @override
   Future<bool> fseIdentical(String path1, String path2) {
     if (_fileSystemDelegate == null) {
       return super.fseIdentical(path1, path2);
     }
-    return _fileSystemDelegate!.identical(path1, path2);
+    return _fileSystemDelegate.identical(path1, path2);
   }
 
   @override
   bool fseIdenticalSync(String path1, String path2) {
     if (_fileSystemDelegate == null) {
       return super.fseIdenticalSync(path1, path2);
     }
-    return _fileSystemDelegate!.identicalSync(path1, path2);
+    return _fileSystemDelegate.identicalSync(path1, path2);
   }
 
   @override
   io.Directory getCurrentDirectory() {
     if (_fileSystemDelegate == null) {
       return super.getCurrentDirectory();
     }
-    return _fileSystemDelegate!.currentDirectory;
+    return _fileSystemDelegate.currentDirectory;
   }
 
   @override
   io.Directory getSystemTempDirectory() {
     if (_fileSystemDelegate == null) {
       return super.getSystemTempDirectory();
     }
-    return _fileSystemDelegate!.systemTempDirectory;
+    return _fileSystemDelegate.systemTempDirectory;
   }
 
   @override
   void setCurrentDirectory(String path) {
     if (_fileSystemDelegate == null) {
       return super.setCurrentDirectory(path);
     }
-    _fileSystemDelegate!.currentDirectory = path;
+    _fileSystemDelegate.currentDirectory = path;
   }
 
   @override
   Future<FileStat> stat(String path) {
     if (_fileSystemDelegate == null) {
       return super.stat(path);
     }
-    return _fileSystemDelegate!.stat(path);
+    return _fileSystemDelegate.stat(path);
   }
 
   @override
   FileStat statSync(String path) {
     if (_fileSystemDelegate == null) {
       return super.statSync(path);
     }
-    return _fileSystemDelegate!.statSync(path);
+    return _fileSystemDelegate.statSync(path);
   }
 }

packages/pigeon/lib/pigeon_lib.dart

@@ -394,7 +394,7 @@ class PigeonOptions {
       if (oneLanguage != null) 'oneLanguage': oneLanguage!,
       if (debugGenerators != null) 'debugGenerators': debugGenerators!,
       if (basePath != null) 'basePath': basePath!,
-      if (_dartPackageName != null) 'dartPackageName': _dartPackageName!,
+      if (_dartPackageName != null) 'dartPackageName': _dartPackageName,
     };
     return result;
   }