Replace more redirected /dotnet URLs

[gewarren]

Prep for #10722.

[Copilot]

Pull request overview

This PR updates .NET API reference documentation to replace redirected /dotnet/... links with newer target URLs, as preparation for #10722’s broader reconciliation work.

Changes:

• Updates many <related> and inline documentation links to newer Learn URL paths (C#, threading, reflection, PLINQ, interop, etc.).
• Replaces “supplemental remarks” links with inlined markdown remarks for some LINQ-to-SQL types.
• Adds new snippet projects/files for System.Data.Linq.TableAttribute (C# and Visual Basic).

Reviewed changes

Copilot reviewed 128 out of 129 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
xml/System/UIntPtr.xml	Updates C# nuint documentation link.
xml/System/Type.xml	Updates reflection article links.
xml/System/ThreadStaticAttribute.xml	Updates threading article link.
xml/System/String.xml	Updates foreach documentation link.
xml/System/Span`1+Enumerator.xml	Updates foreach and ref struct documentation links.
xml/System/ReadOnlySpan`1+Enumerator.xml	Updates foreach documentation link.
xml/System/Nullable`1.xml	Updates default documentation link.
xml/System/NullReferenceException.xml	Updates operator and nullable-reference-types links.
xml/System/MathF.xml	Updates remainder operator documentation link.
xml/System/Math.xml	Updates remainder operator documentation links.
xml/System/IntPtr.xml	Updates C# nint documentation link.
xml/System/IndexOutOfRangeException.xml	Updates foreach documentation link.
xml/System/Func`5.xml	Updates anonymous method / lambda expression links.
xml/System/Func`4.xml	Updates anonymous method / lambda expression links.
xml/System/Func`3.xml	Updates anonymous method / lambda expression links.
xml/System/Func`2.xml	Updates anonymous method / lambda expression links.
xml/System/Func`1.xml	Updates anonymous method / lambda expression links.
xml/System/DuplicateWaitObjectException.xml	Updates threading article link.
xml/System/ArraySegment`1+Enumerator.xml	Updates foreach documentation link.
xml/System/ArgumentOutOfRangeException.xml	Updates threading + lock statement documentation links.
xml/System/AppDomainManager.xml	Adjusts IMPORTANT/NOTE formatting and removes Link Demands link.
xml/System/AggregateException.xml	Updates PLINQ article link.
xml/System/Action`4.xml	Updates anonymous method / lambda expression links.
xml/System/Action`3.xml	Updates anonymous method / lambda expression links.
xml/System/Action`2.xml	Updates anonymous method / lambda expression links.
xml/System/Action`1.xml	Updates anonymous method / lambda expression links.
xml/System/Action.xml	Updates anonymous method / lambda expression links.
xml/System.Xml/XmlWriterSettings.xml	Updates async programming article link.
xml/System.Xml/XmlResolver.xml	Updates async programming article link.
xml/System.Xml/XmlReaderSettings.xml	Updates async programming article link.
xml/System.Xml/XmlReader.xml	Updates async programming article links.
xml/System.Xml/XmlDictionaryWriter.xml	Updates async programming article links.
xml/System.Xml.Xsl/XsltArgumentList.xml	Updates params documentation link.
xml/System.Xml.Xsl/XslTransform.xml	Updates params documentation link.
xml/System.Xml.Linq/XElement.xml	Updates XElement overview links (standard LINQ).
xml/System.Windows.Shell/JumpList.xml	Updates Link Demands link to previous-versions URL.
xml/System.Windows.Input/TouchDevice.xml	Updates Link Demands link to previous-versions URL.
xml/System.Windows.Controls/ItemContainerGenerator.xml	Updates using statement article link.
xml/System.Windows.Annotations.Storage/AnnotationStore.xml	Updates lock statement article link.
xml/System.Threading/WaitHandle.xml	Updates threading-related article links.
xml/System.Threading/Semaphore.xml	Updates threading-related article links.
xml/System.Threading/ReaderWriterLock.xml	Updates threading-related article links.
xml/System.Threading/Mutex.xml	Updates threading-related article links.
xml/System.Threading/Monitor.xml	Updates threading-related article links.
xml/System.Threading/ManualResetEvent.xml	Updates synchronization primitives article links.
xml/System.Threading/LockCookie.xml	Updates reader-writer locks article links.
xml/System.Threading/Interlocked.xml	Updates synchronization primitives article links.
xml/System.Threading/EventWaitHandle.xml	Updates synchronization primitives article links.
xml/System.Threading/AutoResetEvent.xml	Updates synchronization primitives article links.
xml/System.Security/SecurityException.xml	Updates C# is operator documentation links.
xml/System.Security.Permissions/SecurityAction.xml	Removes framework-specific Assert Method link from summary.
xml/System.Security.Permissions/HostProtectionAttribute.xml	Removes Link Demands related link.
xml/System.Security.Cryptography/CryptoStream.xml	Updates async programming article links.
xml/System.Runtime.Versioning/RequiresPreviewFeaturesAttribute.xml	Updates Preview APIs article link.
xml/System.Runtime.Serialization/FormatterServices.xml	Removes Link Demands link from remarks text.
xml/System.Runtime.Remoting/SoapServices.xml	Removes Link Demands link and extra blank lines.
xml/System.Runtime.Remoting/ObjRef.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Services/TrackingServices.xml	Normalizes markdown formatting and removes Link Demands link.
xml/System.Runtime.Remoting.Services/ITrackingHandler.xml	Normalizes markdown formatting and removes Link Demands link.
xml/System.Runtime.Remoting.Services/EnterpriseServicesHelper.xml	Updates COM callable wrapper link and edits Link Demands note text.
xml/System.Runtime.Remoting.Proxies/RealProxy.xml	Removes Link Demands link and updates COM callable wrapper link.
xml/System.Runtime.Remoting.Proxies/ProxyAttribute.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Messaging/ReturnMessage.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Messaging/RemotingSurrogateSelector.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Messaging/LogicalCallContext.xml	Removes Link Demands link and extra blank lines.
xml/System.Runtime.Remoting.Messaging/CallContext.xml	Removes Link Demands link and extra blank lines.
xml/System.Runtime.Remoting.Lifetime/LifetimeServices.xml	Removes Link Demands link and extra blank lines.
xml/System.Runtime.Remoting.Lifetime/ClientSponsor.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Contexts/SynchronizationAttribute.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Channels/TransportHeaders.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Channels/ServerChannelSinkStack.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Channels/ClientChannelSinkStack.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Channels/ChannelDataStore.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Channels/BaseChannelWithProperties.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Channels/BaseChannelSinkWithProperties.xml	Removes Link Demands link.
xml/System.Runtime.Remoting.Channels/BaseChannelObjectWithProperties.xml	Removes Link Demands link.
xml/System.Runtime.InteropServices/Marshal.xml	Updates COM callable/runtime callable wrapper links to standard interop docs.
xml/System.Runtime.CompilerServices/AsyncStateMachineAttribute.xml	Updates async + typeof links.
xml/System.Reflection/MethodInfo.xml	Updates generics article link.
xml/System.Reflection/MethodImplAttributes.xml	Updates lock statement link.
xml/System.Reflection/AssemblyName.xml	Updates reflection article links.
xml/System.Reflection/Assembly.xml	Updates reflection article link.
xml/System.Net.Http/HttpClient.xml	Updates HttpClient guidelines article link.
xml/System.Linq/ParallelQuery`1.xml	Updates PLINQ article link.
xml/System.Linq/ParallelQuery.xml	Updates PLINQ article link.
xml/System.Linq/ParallelMergeOptions.xml	Updates PLINQ article link.
xml/System.Linq/ParallelExecutionMode.xml	Updates PLINQ article link.
xml/System.Linq/OrderedParallelQuery`1.xml	Updates PLINQ article link.
xml/System.Linq/Enumerable.xml	Updates many LINQ programming guide links to newer LINQ docs.
xml/System.Linq.Expressions/Expression`1.xml	Updates lambda expressions article link.
xml/System.IO/File.xml	Updates LINQ-to-Objects link.
xml/System.Dynamic/DynamicObject.xml	Updates dynamic keyword article link.
xml/System.Diagnostics/ProcessStartInfo.xml	Removes Link Demands link.
xml/System.Diagnostics/Process.xml	Removes Link Demands link.
xml/System.Diagnostics/FileVersionInfo.xml	Removes Link Demands link and extra blank lines.
xml/System.Diagnostics/Debug.xml	Updates params keyword link.
xml/System.Diagnostics.Tracing/EventSource.xml	Updates /unsafe compiler option link.
xml/System.Diagnostics.CodeAnalysis/ExperimentalAttribute.xml	Updates Preview APIs article link.
xml/System.Data/TypedTableBaseExtensions.xml	Updates standard query operators article link.
xml/System.Data/EnumerableRowCollectionExtensions.xml	Updates standard query operators article link.
xml/System.Data.Linq/DataLoadOptions.xml	Replaces supplemental link with inlined markdown remarks.
xml/System.Data.Linq.Mapping/TableAttribute.xml	Replaces supplemental link with inlined markdown remarks and adds snippet references.
xml/System.Collections/DictionaryEntry.xml	Updates foreach documentation link.
xml/System.Collections/DictionaryBase.xml	Updates foreach documentation link.
xml/System.Collections.Generic/IEnumerable`1.xml	Updates yield keyword documentation link.
xml/System.CodeDom/CodeTypeParameter.xml	Updates generics article link.
xml/System.CodeDom/CodeTypeDeclaration.xml	Updates generics article link.
xml/System.CodeDom/CodeDefaultValueExpression.xml	Updates generics article link.
xml/System.CodeDom.Compiler/TempFileCollection.xml	Removes Link Demands link.
xml/System.CodeDom.Compiler/IndentedTextWriter.xml	Removes Link Demands link.
xml/System.CodeDom.Compiler/Executor.xml	Normalizes markdown formatting and removes Link Demands link.
xml/System.CodeDom.Compiler/CompilerParameters.xml	Removes Link Demands link.
xml/System.CodeDom.Compiler/CompilerInfo.xml	Removes Link Demands link and extra blank lines.
xml/System.CodeDom.Compiler/CodeParser.xml	Removes Link Demands link.
xml/System.CodeDom.Compiler/CodeGeneratorOptions.xml	Removes Link Demands link.
xml/System.CodeDom.Compiler/CodeGenerator.xml	Removes Link Demands link.
xml/System.CodeDom.Compiler/CodeDomProvider.xml	Removes Link Demands link.
xml/System.CodeDom.Compiler/CodeCompiler.xml	Removes Link Demands link.
xml/System.AddIn.Contract.Automation/RemoteParameterData.xml	Updates params documentation link.
xml/Microsoft.CSharp/Compiler.xml	Updates many compiler-option links to newer compiler-options pages.
xml/Microsoft.CSharp/CSharpCodeProvider.xml	Updates reflection article link.
snippets/visualbasic/System.Data.Linq/TableAttribute/Overview/Project.vbproj	Adds VB snippet project for TableAttribute.
snippets/visualbasic/System.Data.Linq/TableAttribute/Overview/Module1.vb	Adds VB snippet source with snippet regions.
snippets/csharp/System.Data.Linq/TableAttribute/Overview/Project.csproj	Adds C# snippet project for TableAttribute.
snippets/csharp/System.Data.Linq/TableAttribute/Overview/Program.cs	Adds C# snippet source with snippet regions.

[Copilot]

The link for the null-conditional operator (?.) points to the null-coalescing operator article. This makes the guidance incorrect and sends readers to the wrong operator documentation. Update the href to the null-conditional operator page, and consider linking "Nullable reference types" to the nullable reference types section/page (not the general version history).