Seal/abstract/virtual everything (#6739)

Content.Benchmarks/ColorInterpolateBenchmark.cs

@@ -12,7 +12,7 @@ using SysVector4 = System.Numerics.Vector4;
 namespace Content.Benchmarks
 {
     [DisassemblyDiagnoser]
-    public class ColorInterpolateBenchmark
+    public sealed class ColorInterpolateBenchmark
     {
 #if NETCOREAPP
         private const MethodImplOptions AggressiveOpt = MethodImplOptions.AggressiveOptimization;

Content.Benchmarks/ComponentFetchBenchmark.cs

@@ -6,7 +6,7 @@ using Robust.Shared.Utility;
 namespace Content.Benchmarks
 {
     [SimpleJob]
-    public class ComponentFetchBenchmark
+    public sealed class ComponentFetchBenchmark
     {
         [Params(5000)] public int NEnt { get; set; }
 
@@ -218,39 +218,39 @@ namespace Content.Benchmarks
             public EntityUid Uid;
         }
 
-        private class BComponent1 : BComponent
+        private sealed class BComponent1 : BComponent
         {
         }
 
-        private class BComponent2 : BComponent
+        private sealed class BComponent2 : BComponent
         {
         }
 
-        private class BComponent3 : BComponent
+        private sealed class BComponent3 : BComponent
         {
         }
 
-        private class BComponent4 : BComponent
+        private sealed class BComponent4 : BComponent
         {
         }
 
-        private class BComponentLookup : BComponent
+        private sealed class BComponentLookup : BComponent
         {
         }
 
-        private class BComponent6 : BComponent
+        private sealed class BComponent6 : BComponent
         {
         }
 
-        private class BComponent7 : BComponent
+        private sealed class BComponent7 : BComponent
         {
         }
 
-        private class BComponent8 : BComponent
+        private sealed class BComponent8 : BComponent
         {
         }
 
-        private class BComponent9 : BComponent
+        private sealed class BComponent9 : BComponent
         {
         }
     }

Content.Benchmarks/DependencyInjectBenchmark.cs

@@ -6,7 +6,7 @@ namespace Content.Benchmarks
 {
     // To actually run this benchmark you'll have to make DependencyCollection public so it's accessible.
 
-    public class DependencyInjectBenchmark
+    public sealed class DependencyInjectBenchmark
     {
         [Params(InjectMode.Reflection, InjectMode.DynamicMethod)]
         public InjectMode Mode { get; set; }

Content.Benchmarks/DynamicTreeBenchmark.cs

@@ -5,7 +5,7 @@ using Robust.Shared.Physics;
 namespace Content.Benchmarks
 {
     [SimpleJob, MemoryDiagnoser]
-    public class DynamicTreeBenchmark
+    public sealed class DynamicTreeBenchmark
     {
         private static readonly Box2[] _aabbs1 =
         {

Content.Benchmarks/EntityFetchBenchmark.cs

@@ -6,7 +6,7 @@ using Robust.Shared.Utility;
 namespace Content.Benchmarks
 {
     [SimpleJob]
-    public class EntityFetchBenchmark
+    public sealed class EntityFetchBenchmark
     {
         [Params(1000)] public int N { get; set; }
 

Content.Benchmarks/EntityManagerGetAllComponents.cs

@@ -10,7 +10,7 @@ using Robust.Shared.Reflection;
 
 namespace Content.Benchmarks
 {
-    public class EntityManagerGetAllComponents
+    public sealed class EntityManagerGetAllComponents
     {
         private IEntityManager _entityManager;
 
@@ -87,7 +87,7 @@ namespace Content.Benchmarks
             return count;
         }
 
-        private class DummyComponent : Component
+        private sealed class DummyComponent : Component
         {
         }
     }

Content.Benchmarks/NetSerializerIntBenchmark.cs

@@ -6,7 +6,7 @@ using BenchmarkDotNet.Attributes;
 namespace Content.Benchmarks
 {
     [SimpleJob]
-    public class NetSerializerIntBenchmark
+    public sealed class NetSerializerIntBenchmark
     {
         private MemoryStream _writeStream;
         private MemoryStream _readStream;

Content.Benchmarks/NetSerializerStringBenchmark.cs

@@ -13,7 +13,7 @@ namespace Content.Benchmarks
     // Code for the *Slow and *Unsafe implementations taken from NetSerializer, licensed under the MIT license.
 
     [MemoryDiagnoser]
-    public class NetSerializerStringBenchmark
+    public sealed class NetSerializerStringBenchmark
     {
         private const int StringByteBufferLength = 256;
         private const int StringCharBufferLength = 128;

Content.Benchmarks/StereoToMonoBenchmark.cs

@@ -3,7 +3,7 @@ using BenchmarkDotNet.Attributes;
 
 namespace Content.Benchmarks
 {
-    public class StereoToMonoBenchmark
+    public sealed class StereoToMonoBenchmark
     {
         [Params(128, 256, 512)]
         public int N { get; set; }