[jni] minor lint fixes (#2755)

Author: goderbauer

pkgs/jni/example/lib/main.dart

@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// ignore_for_file: library_private_types_in_public_api
-
 import 'dart:io';
 import 'dart:ui';
 
@@ -148,7 +146,7 @@ class ExampleCard extends StatefulWidget {
   final Example example;
 
   @override
-  _ExampleCardState createState() => _ExampleCardState();
+  State<ExampleCard> createState() => _ExampleCardState();
 }
 
 class _ExampleCardState extends State<ExampleCard> {

pkgs/jni/ffigen.yaml

@@ -7,7 +7,7 @@ description: |
 
   However, functions prefixed JNI_ are not usable because they are in a different shared library.
 
-  Regenerate bindings with `flutter pub run ffigen.dart --config ffigen.yaml`.
+  Regenerate bindings with `flutter pub run ffigen --config ffigen.yaml`.
 output: 'lib/src/third_party/jni_bindings_generated.dart'
 headers:
   entry-points:

pkgs/jni/lib/src/third_party/jni_bindings_generated.dart

@@ -46,7 +46,7 @@ import 'dart:ffi' as ffi;
 ///
 /// However, functions prefixed JNI_ are not usable because they are in a different shared library.
 ///
-/// Regenerate bindings with `flutter pub run ffigen.dart --config ffigen.yaml`.
+/// Regenerate bindings with `flutter pub run ffigen --config ffigen.yaml`.
 ///
 class JniBindings {
   /// Holds the symbol lookup function.

pkgs/jnigen/test/summary_generation_test.dart

@@ -5,8 +5,8 @@
 // These tests validate summary generation in various scenarios.
 // Currently, no validation of the summary content itself is done.
 
-// ignore: library_annotations
 @Tags(['summarizer_test'])
+library;
 
 import 'dart:math';
 

pkgs/jnigen/test/summary_test.dart

@@ -4,8 +4,9 @@
 
 // These tests validate individual characteristics in summary
 // For example, the values of methods, arguments, types, generic params etc...
-// ignore: library_annotations
+
 @Tags(['summarizer_test'])
+library;
 
 import 'package:jnigen/src/elements/elements.dart';
 import 'package:jnigen/src/summary/summary.dart';