Structural and Memory Safety Improvements, Analyzer Cleanup (ryubing/ryujinx!47)

See merge request ryubing/ryujinx!47

src/Ryujinx.Graphics.Gpu/Engine/MmeShadowScratch.cs

@@ -9,9 +9,7 @@ namespace Ryujinx.Graphics.Gpu.Engine
     [StructLayout(LayoutKind.Sequential, Size = 1024)]
     struct MmeShadowScratch
     {
-#pragma warning disable CS0169 // The private field is never used
         private uint _e0;
-#pragma warning restore CS0169
         public ref uint this[int index] => ref AsSpan()[index];
         public Span<uint> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, 256);
     }