Fix CA2263

.editorconfig

@@ -1043,6 +1043,9 @@ dotnet_diagnostic.CA2251.severity = warning
 # Ensure ThreadStatic is only used with static fields.
 dotnet_diagnostic.CA2259.severity = suggestion # TODO: Change to warning once using .NET 7 or later.
 
+# Prefer generic overload when type is known.
+dotnet_diagnostic.CA2263.severity = none # TODO: Change to warning once mono is dropped.
+
 # Do not pass a non-nullable value to 'ArgumentNullException.ThrowIfNull'.
 dotnet_diagnostic.CA2264.severity = warning
 

OpenRA.Game/Graphics/SpriteRenderer.cs

@@ -20,7 +20,7 @@ namespace OpenRA.Graphics
 	{
 		public const int SheetCount = 8;
 		static readonly string[] SheetIndexToTextureName = Exts.MakeArray(SheetCount, i => $"Texture{i}");
-		static readonly int UintSize = Marshal.SizeOf(typeof(uint));
+		static readonly int UintSize = Marshal.SizeOf<uint>();
 
 		readonly Renderer renderer;
 		readonly IShader shader;

OpenRA.Game/Map/ActorInitializer.cs

@@ -154,7 +154,7 @@ namespace OpenRA
 
 		public virtual void Initialize(MiniYaml yaml)
 		{
-			Initialize((T)FieldLoader.GetValue(nameof(value), typeof(T), yaml.Value));
+			Initialize(FieldLoader.GetValue<T>(nameof(value), yaml.Value));
 		}
 
 		public virtual void Initialize(T value)

OpenRA.Mods.Common/ActorInitializer.cs

@@ -54,7 +54,7 @@ namespace OpenRA.Mods.Common
 
 		public void Initialize(MiniYaml yaml)
 		{
-			Initialize((int)FieldLoader.GetValue(nameof(value), typeof(int), yaml.Value));
+			Initialize(FieldLoader.GetValue<int>(nameof(value), yaml.Value));
 		}
 
 		public void Initialize(int value)

OpenRA.Platforms.Default/Sdl2HardwareCursor.cs

@@ -30,7 +30,7 @@ namespace OpenRA.Platforms.Default
 				if (surface == IntPtr.Zero)
 					throw new InvalidDataException($"Failed to create surface: {SDL.SDL_GetError()}");
 
-				var sur = (SDL.SDL_Surface)Marshal.PtrToStructure(surface, typeof(SDL.SDL_Surface));
+				var sur = Marshal.PtrToStructure<SDL.SDL_Surface>(surface);
 				Marshal.Copy(data, 0, sur.pixels, data.Length);
 
 				// This call very occasionally fails on Windows, but often works when retried.

OpenRA.Platforms.Default/VertexBuffer.cs

@@ -17,7 +17,7 @@ namespace OpenRA.Platforms.Default
 	sealed class VertexBuffer<T> : ThreadAffine, IDisposable, IVertexBuffer<T>
 			where T : struct
 	{
-		static readonly int VertexSize = Marshal.SizeOf(typeof(T));
+		static readonly int VertexSize = Marshal.SizeOf<T>();
 		uint buffer;
 		bool disposed;