Use more trim-friendly patterns for Type.DefaultBinder and CultureData

[jkotas]

No description provided.

[jkotas]

This should realize the small improvement from #119171 by changing the source code.

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[Copilot]

Pull Request Overview

This PR modernizes type initialization patterns and improves thread safety in reflection-related code. The changes focus on using more trim-friendly patterns for Type.DefaultBinder and CultureData, replacing outdated collection initialization syntax with modern C# collection expressions.

• Replaces Type.EmptyTypes references with modern collection expression syntax []
• Modernizes Type.DefaultBinder implementation to use singleton pattern instead of lazy initialization with locks
• Improves thread safety in CultureData caching by using Interlocked.CompareExchange pattern

Reviewed Changes

Copilot reviewed 26 out of 26 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/libraries/System.Private.CoreLib/src/System/Type.cs	Updates DefaultBinder to use singleton pattern and replaces EmptyTypes with []
src/libraries/System.Private.CoreLib/src/System/DefaultBinder.cs	Implements singleton Instance property and updates Missing.Value references
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.cs	Improves thread safety using Interlocked.CompareExchange pattern
Multiple reflection files	Replace Type.EmptyTypes with modern collection expression []
src/coreclr files	Updates native AOT and CoreCLR implementations to use modern patterns

[jkotas]

The main improvement is realized by avoiding dependencies on System.Type public static fields. System.Type exposes static fields in the public surface and so referencing one of the fields will bring all of them into the dependency graph via the static constructor.

[MichalStrehovsky]

Nice!