[Ryujinx.Horizon.Kernel.Generators] Address dotnet-format issues (#5376)

* Address most dotnet format whitespace warnings

* Apply dotnet format whitespace formatting

A few of them have been manually reverted and the corresponding warning was silenced

* Simplify properties and array initialization, Use const when possible, Remove trailing commas

* Revert "Simplify properties and array initialization, Use const when possible, Remove trailing commas"

This reverts commit 9462e4136c0a2100dc28b20cf9542e06790aa67e.

* dotnet format whitespace after rebase

* Run dotnet format pass

* Remove left-over files and adjust namespaces

* Fix alignment

src/Ryujinx.Horizon.Kernel.Generators/SyscallSyntaxReceiver.cs

@@ -0,0 +1,53 @@
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Ryujinx.Horizon.Kernel.Generators
+{
+    class SyscallSyntaxReceiver : ISyntaxReceiver
+    {
+        public List<MethodDeclarationSyntax> SvcImplementations { get; }
+
+        public SyscallSyntaxReceiver()
+        {
+            SvcImplementations = new List<MethodDeclarationSyntax>();
+        }
+
+        public void OnVisitSyntaxNode(SyntaxNode syntaxNode)
+        {
+            if (!(syntaxNode is ClassDeclarationSyntax classDeclaration) || classDeclaration.AttributeLists.Count == 0)
+            {
+                return;
+            }
+
+            if (!classDeclaration.AttributeLists.Any(attributeList =>
+                    attributeList.Attributes.Any(x => x.Name.GetText().ToString() == "SvcImpl")))
+            {
+                return;
+            }
+
+            foreach (var memberDeclaration in classDeclaration.Members)
+            {
+                if (memberDeclaration is MethodDeclarationSyntax methodDeclaration)
+                {
+                    VisitMethod(methodDeclaration);
+                }
+            }
+        }
+
+        private void VisitMethod(MethodDeclarationSyntax methodDeclaration)
+        {
+            if (methodDeclaration.AttributeLists.Count == 0)
+            {
+                return;
+            }
+
+            if (methodDeclaration.AttributeLists.Any(attributeList =>
+                    attributeList.Attributes.Any(x => x.Name.GetText().ToString() == "Svc")))
+            {
+                SvcImplementations.Add(methodDeclaration);
+            }
+        }
+    }
+}