Add ExcludeStatics support to trimming tools

[sbomer]

See API proposal in #117524.

[Copilot]

Pull Request Overview

This PR adds support for the ExcludeStatics property to the RequiresUnreferencedCode and RequiresDynamicCode attributes in trimming tools. This feature allows developers to apply requires attributes to classes while excluding static members from the warnings, providing more granular control over trim analysis.

Key changes:

• Added ExcludeStatics property to attribute definitions and parsing logic
• Updated trimmer analysis logic to skip static members when ExcludeStatics = true
• Added comprehensive test cases to validate the new functionality

Reviewed Changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/tools/illink/src/ILLink.Shared/RequiresUnreferencedCodeAttribute.cs	Added new attribute definition with ExcludeStatics property
src/tools/illink/src/ILLink.Shared/RequiresDynamicCodeAttribute.cs	Added new attribute definition with ExcludeStatics property
src/tools/illink/src/linker/Linker/LinkerAttributesInformation.cs	Updated attribute parsing to handle ExcludeStatics property
src/tools/illink/src/linker/Linker/Annotations.cs	Modified analysis logic to respect ExcludeStatics setting
src/tools/illink/src/ILLink.RoslynAnalyzer/RequiresISymbolExtensions.cs	Updated analyzer to handle ExcludeStatics in Roslyn context
src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/Dataflow/DiagnosticUtilities.cs	Updated NativeAOT compiler analysis logic
src/tools/illink/test/Mono.Linker.Tests.Cases/RequiresCapability/RequiresExcludeStatics.cs	Comprehensive test cases for ExcludeStatics functionality
Various test infrastructure files	Updated to include new attribute files and test support

Comments suppressed due to low confidence (1)

src/tools/illink/test/Mono.Linker.Tests.Cases/RequiresCapability/RequiresOnClass.cs:86

• The call to AttributedMethod() is added without any context or expectations. If this is meant to test specific behavior, it should have corresponding ExpectedWarning or UnexpectedWarning attributes.

                AttributedMethod();

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[sbomer]

/ba-g "timeouts"