把所有 ContractTestCase 改为 TestMethod，因为前者已不支持新的测试框架了

Author: walterlv

Directory.Packages.props

@@ -16,12 +16,11 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.VisualBasic.CodeFix.Testing.MSTest" Version="1.1.2" />
     <PackageVersion Include="Microsoft.CodeAnalysis.VisualBasic.CodeRefactoring.Testing.MSTest" Version="1.1.2" />
     <PackageVersion Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.4.1" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="1.0.0" />
     <PackageVersion Include="Moq" Version="4.20.70" />
-    <PackageVersion Include="MSTest.TestAdapter" Version="3.0.2" />
-    <PackageVersion Include="MSTest.TestFramework" Version="3.0.2" />
-    <PackageVersion Include="MSTestEnhancer" Version="2.2.1" />
+    <PackageVersion Include="MSTest.TestAdapter" Version="3.4.3" />
+    <PackageVersion Include="MSTest.TestFramework" Version="3.4.3" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageVersion Include="System.IO.Pipelines" Version="8.0.0" />
     <PackageVersion Include="System.ValueTuple" Version="4.5.0" />

tests/dotnetCampus.Ipc.Analyzers.Tests/dotnetCampus.Ipc.Analyzers.Tests.csproj

@@ -21,7 +21,6 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Moq" />
-    <PackageReference Include="MSTestEnhancer" />
   </ItemGroup>
 
   <ItemGroup>

tests/dotnetCampus.Ipc.Tests/AckManagerTest.cs

@@ -3,7 +3,6 @@
 using System.IO;
 using System.Threading.Tasks;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using MSTest.Extensions.Contracts;
 
 namespace dotnetCampus.Ipc.PipeCore
 {