Enable xunit1024 (#34512)

Enable xunit1024 (#34512)

* Enable analyzer rule xUnit1024

* Remove redundant test in System.Text.Json

The very next method is a Theory with inline data that tests this
exact scenario.

* Rename test methods in System.Text.Json

* Rename test methods in System.ComponentModel.Annotations

* Private methods -> local functions in System.Text.Json

* Rename test methods in System.Collections.Immutable

For RemoveNonExistingTest, just moved the logic from the single-use
helper into the method with the Fact attribute.

* Rename test methods in System.Globalization

* Rename test methods in System.Runtime.Extensions

In Math.cs, removed Round_Decimal_Digits Fact which manually tested
cases included in the MemberData of a Theory with the same name.

* Rename test methods in System.Private.Uri

* Rename test methods in System.Runtime.WindowsRuntime.UI.Xaml

* Rename test methods in System.Security.Cryptography.X509Certificates

* Rename test methods in System.Reflection

* Remove redundant test in System.IO.FileSystem.Watcher

Theory EndInit_ResumesPausedEnableRaisingEvents alredy tests
the same scenario as the removed Fact of the same name.

* Rename test methods in System.IO.FileSystem.Watcher

* Rename test methods in System.Composition.Runtime

* Rename test methods in System.Drawing.Primitives

* Rename test methods in System.Reflection.Emit

* Rename test methods in System.Text.RegularExpressions

* Private methods -> local functions in System.Threading.Tasks.Parallel

* Rename test methods in System.Threading.Tasks.Parallel

* Rename test methods in System.Threading.Tasks

* Simplify tests in System.Threading

* Rename test methods in System.Threading

* Rename test methods in Microsoft.VisualBasic.Core

* Rename test methods in System.DirectoryServices.AccountManagement

* Private methods -> local functions in System.Text.Encoding

* Rename test methods in System.Text.Encoding

* Rename test methods in System.Security.Cryptography.Primitives

* Rename test methods in System.Runtime.Numeric

* Rename test methods in System.CodeDom.Tests

* Rename test methods in System.Reflection.Emit.ILGeneration

* Rename test methods in System.Composition.AttributedModel

* Rename test methods in System.Data.DataSetExtensions

* Rename test methods in System.Runtime

* Rename test methods in System.Runtime.InteropServices

* Remove redundant test in System.ServiceModel.Syndication

* Rename test methods in System.ServiceModel.Syndication

* Rename test methods in System.Data.Common

* Rename test methods in System.Security.Cryptography.Xml

* Private methods -> local functions in System.Security.Cryptography.Xml

* Simplify tests in System.Security.Cryptography.ProtectedData

* Replace private methods with local functions...

In System.Security.Cryptography.Algorithms

* Rename test methods in System.Security.Cryptography.Algorithms

* Simplify tests code in System.Collections.Concurrent

* Rename test methods in System.Drawing.Common

* Rename test methods in System.Data.OleDb

* Rename test methods in System.ComponentModel.TypeConverter

* Rename test methods in System.Web.HttpUtility

* Rename test methods in System.Linq

* Private method -> local function in System.Linq

* Rename test methods in System.Memory

* Rename test methods in System.IO.IsolatedStorage

* Rename test methods in System.DirectoryServices.Protocols

* Rename test methods in System.Globalization.Extensions

* Private methods -> local functions in System.Globalization.Extensions

* Rename test methods in System.IO.Compression

* Rename test methods in System.Security.Cryptography.Encoding

* Rename test methods in Microsoft.Win32.Registry

* Rename test methods in System.IO.UnmanagedMemoryStream

* Rename test methods in System.Collections

* Rename test methods in System.Collections.Specialized

* Rename test methods in System.Private.Xml

* Rename test methods in System.IO.FileSystem

* Rename test methods in System.Diagnostics.StackTrace

* Rename test methods in System.Diagnostics

* Improve some test method renames

* Minor nit fixing

* More improvements to test method names