perf: Use records instead of record structs for large SG models

src/SourceGenerators/Uno.UI.SourceGenerators.Internal/DependencyObject/DependencyPropertyGenerator.cs

@@ -20,7 +20,7 @@ public class DependencyPropertyGenerator : IIncrementalGenerator
 	{
 		private static SymbolDisplayFormat _fullyQualifiedWithoutGlobal = SymbolDisplayFormat.FullyQualifiedFormat.WithGlobalNamespaceStyle(SymbolDisplayGlobalNamespaceStyle.Omitted);
 
-		private readonly record struct AttachedPropertyData
+		private record AttachedPropertyData
 		{
 			public string? AttachedBackingFieldOwnerFullyQualifiedName { get; }
 			public string? AttachedBackingFieldOwnerNamespace { get; }
@@ -56,7 +56,7 @@ public AttachedPropertyData(ISymbol dpSymbol, AttributeData attribute, string pr
 			}
 		}
 
-		private readonly record struct PropertyData
+		private record PropertyData
 		{
 			public string? PropertySymbolNodeContent { get; }
 
@@ -82,7 +82,7 @@ public PropertyData(ISymbol dpSymbol, string propertyName)
 			}
 		}
 
-		private readonly record struct GenerationCandidateData
+		private record GenerationCandidateData
 		{
 			#region Attribute arguments
 			public string MetadataOptions { get; }