Fix formatting (#137613)

Badly formatted code causes distraction when reading, and costs people energy when understanding code.

Author: dcharkes

packages/flutter_tools/lib/src/base/version_range.dart

@@ -10,7 +10,7 @@ import 'package:meta/meta.dart' show immutable;
 /// Both the [versionMin] and [versionMax] are inclusive versions, and undefined
 /// values represent an unknown minimum/maximum version.
 @immutable
-class VersionRange{
+class VersionRange {
   const VersionRange(
     this.versionMin,
     this.versionMax,

packages/flutter_tools/lib/src/project_validator.dart

@@ -205,7 +205,7 @@ class VariableDumpMachineProjectValidator extends MachineProjectValidator {
 /// Validator run for all platforms that extract information from the pubspec.yaml.
 ///
 /// Specific info from different platforms should be written in their own ProjectValidator.
-class GeneralInfoProjectValidator extends ProjectValidator{
+class GeneralInfoProjectValidator extends ProjectValidator {
   @override
   Future<List<ProjectValidatorResult>> start(FlutterProject project) async {
     final FlutterManifest flutterManifest = project.manifest;
@@ -316,7 +316,7 @@ class PubDependenciesProjectValidator extends ProjectValidator {
       jsonResult = json.decode(
         processResult.stdout.toString()
       ) as LinkedHashMap<String, dynamic>;
-    } on FormatException{
+    } on FormatException {
       result.add(_createProjectValidatorError(name, processResult.stderr.toString()));
       return result;
     }

packages/flutter_tools/test/commands.shard/hermetic/analyze_suggestion_test.dart

@@ -20,7 +20,7 @@ import '../../src/test_flutter_command_runner.dart';
 
 class ProjectValidatorDummy extends ProjectValidator {
   @override
-  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger? logger, FileSystem? fileSystem}) async{
+  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger? logger, FileSystem? fileSystem}) async {
     return <ProjectValidatorResult>[
       const ProjectValidatorResult(name: 'pass', value: 'value', status: StatusProjectValidator.success),
       const ProjectValidatorResult(name: 'fail', value: 'my error', status: StatusProjectValidator.error),
@@ -39,7 +39,7 @@ class ProjectValidatorDummy extends ProjectValidator {
 
 class ProjectValidatorSecondDummy extends ProjectValidator {
   @override
-  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger? logger, FileSystem? fileSystem}) async{
+  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger? logger, FileSystem? fileSystem}) async {
     return <ProjectValidatorResult>[
       const ProjectValidatorResult(name: 'second', value: 'pass', status: StatusProjectValidator.success),
       const ProjectValidatorResult(name: 'other fail', value: 'second fail', status: StatusProjectValidator.error),
@@ -57,7 +57,7 @@ class ProjectValidatorSecondDummy extends ProjectValidator {
 
 class ProjectValidatorCrash extends ProjectValidator {
   @override
-  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger? logger, FileSystem? fileSystem}) async{
+  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger? logger, FileSystem? fileSystem}) async {
     throw Exception('my exception');
   }