Add some more new lints (#91659)

analysis_options.yaml

@@ -112,6 +112,7 @@ linter:
     - empty_catches
     - empty_constructor_bodies
     - empty_statements
+    - eol_at_end_of_file
     - exhaustive_cases
     - file_names
     - flutter_style_todos
@@ -162,6 +163,7 @@ linter:
     - prefer_final_fields
     - prefer_final_in_for_each
     - prefer_final_locals
+    # - prefer_final_parameters # we should enable this one day (see also parameter_assignments)
     - prefer_for_elements_to_map_fromIterable
     - prefer_foreach
     - prefer_function_declarations_over_variables
@@ -178,6 +180,7 @@ linter:
     - prefer_iterable_whereType
     # - prefer_mixin # Has false positives, see https://github.com/dart-lang/linter/issues/3018
     - prefer_null_aware_operators
+    # - prefer_null_aware_method_calls # "call()" is confusing to people new to the language since it's not documented anywhere
     - prefer_relative_imports
     - prefer_single_quotes
     - prefer_spread_collections
@@ -186,6 +189,7 @@ linter:
     - provide_deprecation_message
     # - public_member_api_docs # enabled on a case-by-case basis; see e.g. packages/analysis_options.yaml
     - recursive_getters
+    # - require_trailing_commas # blocked on https://github.com/dart-lang/sdk/issues/47441
     - sized_box_for_whitespace
     - slash_for_doc_comments
     - sort_child_properties_last
@@ -201,6 +205,7 @@ linter:
     - unnecessary_await_in_return
     - unnecessary_brace_in_string_interps
     - unnecessary_const
+    - unnecessary_constructor_name
     # - unnecessary_final # conflicts with prefer_final_locals
     - unnecessary_getters_setters
     # - unnecessary_lambdas # has false positives: https://github.com/dart-lang/linter/issues/498
@@ -218,6 +223,7 @@ linter:
     - unnecessary_this
     - unrelated_type_equality_checks
     # - unsafe_html # not yet tested
+    - use_build_context_synchronously
     - use_full_hex_values_for_flutter_colors
     - use_function_type_syntax_for_parameters
     # - use_if_null_to_convert_nulls_to_bools # not yet tested

dev/integration_tests/android_views/lib/motion_events_page.dart

@@ -181,8 +181,14 @@ class MotionEventsBodyState extends State<MotionEventsBody> {
       // This test only runs on Android so we can assume path separator is '/'.
       final File file = File('${outDir?.path}/$kEventsFileName');
       await file.writeAsBytes(data.buffer.asUint8List(0, data.lengthInBytes), flush: true);
+      if (!mounted) {
+        return;
+      }
       showMessage(context, 'Saved original events to ${file.path}');
     } catch (e) {
+      if (!mounted) {
+        return;
+      }
       showMessage(context, 'Failed saving ${e.toString()}');
     }
   }

dev/integration_tests/hybrid_android_views/lib/motion_events_page.dart

@@ -163,8 +163,14 @@ class MotionEventsBodyState extends State<MotionEventsBody> {
       // This test only runs on Android so we can assume path separator is '/'.
       final File file = File('${outDir.path}/$kEventsFileName');
       await file.writeAsBytes(data.buffer.asUint8List(0, data.lengthInBytes), flush: true);
+      if (!mounted) {
+        return;
+      }
       showMessage(context, 'Saved original events to ${file.path}');
     } catch (e) {
+      if (!mounted) {
+        return;
+      }
       showMessage(context, 'Failed saving ${e.toString()}');
     }
   }

packages/flutter/test/rendering/layers_test.dart

@@ -649,4 +649,4 @@ class FakeSceneBuilder extends Fake implements SceneBuilder {
 
 class FakeOpacityEngineLayer extends FakeEngineLayer implements OpacityEngineLayer {}
 
-class FakeOffsetEngineLayer extends FakeEngineLayer implements OffsetEngineLayer {}
\ No newline at end of file
+class FakeOffsetEngineLayer extends FakeEngineLayer implements OffsetEngineLayer {}

packages/flutter_tools/test/general.shard/base/task_queue_test.dart

@@ -95,4 +95,4 @@ void main() {
   });
 }
 
-class TestException implements Exception {}
\ No newline at end of file
+class TestException implements Exception {}