Re-enable xUnit analyzers

Resolves #22230

Author: smitpatel

test/Directory.Build.targets

@@ -50,8 +50,8 @@ public void Does_not_throw_when_non_virtual_indexer_not_mapped()
         {
             using var context = new ChangeContext<ChangeNonVirtualIndexerNotUsed>();
 
-            Assert.False(
-                context.Model.FindEntityType(typeof(ChangeNonVirtualIndexerNotUsed)).GetProperties().Any(e => e.IsIndexerProperty()));
+            Assert.DoesNotContain(
+                context.Model.FindEntityType(typeof(ChangeNonVirtualIndexerNotUsed)).GetProperties(), e => e.IsIndexerProperty());
         }
 
         [ConditionalFact]
@@ -318,7 +318,7 @@ public void Raises_changing_event_when_equal_and_check_equality_false(bool useLa
         private class ChangeContext<TEntity> : TestContext<TEntity>
             where TEntity : class
         {
-            private  Action<EntityTypeBuilder<TEntity>> _entityBuilderAction;
+            private readonly Action<EntityTypeBuilder<TEntity>> _entityBuilderAction;
 
             public ChangeContext(
                 bool useLazyLoading = false,
@@ -343,7 +343,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
         private class SharedChangeContext<TEntity> : DbContext
             where TEntity : class
         {
-            private  Action<EntityTypeBuilder<TEntity>> _entityBuilderAction;
+            private readonly Action<EntityTypeBuilder<TEntity>> _entityBuilderAction;
 
             public SharedChangeContext(Action<EntityTypeBuilder<TEntity>> entityBuilderAction = null)
             {

test/EFCore.Proxies.Tests/ChangeDetectionProxyTests.cs

@@ -337,7 +337,7 @@ public void Model_differ_breaks_double_foreign_key_cycles_in_create_table_operat
 
                     var createBankTableOperation = Assert.IsType<CreateTableOperation>(result[0]);
                     Assert.Equal("Banks", createBankTableOperation.Name);
-                    Assert.Equal(0, createBankTableOperation.ForeignKeys.Count);
+                    Assert.Empty(createBankTableOperation.ForeignKeys);
 
                     Assert.Equal(4, result.OfType<AddForeignKeyOperation>().Count());
                 });

test/EFCore.Relational.Tests/Migrations/Internal/MigrationsModelDifferTest.cs

@@ -9310,7 +9310,7 @@ public virtual void Query_filter_with_contains_evaluates_correctly()
             {
                 using var context = new MyContext10295(_options);
                 var result = context.Entities.ToList();
-                Assert.Equal(1, result.Count);
+                Assert.Single(result);
 
                 AssertSql(
                     @"SELECT [e].[Id], [e].[Name]