fix analysis

Author: liamappelbe

pkgs/ffigen/test/example_tests/libclang_example_test.dart

@@ -4,10 +4,7 @@
 
 import 'dart:io';
 
-import 'package:ffigen/src/code_generator/library.dart';
-import 'package:ffigen/src/config_provider/config.dart';
 import 'package:ffigen/src/header_parser.dart';
-import 'package:logging/logging.dart';
 import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 
@@ -32,7 +29,7 @@ void main() {
       // yaml code. To support concurrent tests, we can't set Directory.current.
       // As a workaround, add an extra '-I' option that uses the absolute path.
       generator.headers.compilerOptions!.add(
-        '-I${path.join(packagePathForTests, 'third_party/libclang/include')}'
+        '-I${path.join(packagePathForTests, 'third_party/libclang/include')}',
       );
 
       final context = testContext(generator);

pkgs/ffigen/test/native_test/native_test.dart

@@ -6,7 +6,6 @@ import 'dart:ffi';
 import 'dart:io';
 import 'dart:math';
 
-import 'package:ffigen/ffigen.dart';
 import 'package:ffigen/src/header_parser.dart' show parse;
 import 'package:path/path.dart' as path;
 import 'package:test/test.dart';

pkgs/ffigen/test/regen.dart

@@ -21,9 +21,8 @@ $ dart run test/setup.dart && dart run test/regen.dart && dart test
 
 void _regenConfig(Logger logger, String yamlConfigPath) {
   final path = p.join(packagePathForTests, yamlConfigPath);
-  withChDir(path, () {
-    testConfigFromPath(path).generate(logger: logger);
-  });
+  Directory.current = File(path).parent;
+  testConfigFromPath(path).generate(logger: logger);
 }
 
 Future<void> main(List<String> args) async {