Specify version of xunit.console.dll during the custom build (dotnet/…

…coreclr#20975)

* Use stable Xunit v2.4.1
* Use xunit.console.dll with specified assembly version to avoid issues with Ready2Run jobs
* Update comment regarding building xunit with specified version in tests/runtest.py


Commit migrated from dotnet/coreclr@124a8b9

src/coreclr/dependencies.props

@@ -38,7 +38,7 @@
     <PgoDataPackageVersion>99.99.99-master-20181112-0043</PgoDataPackageVersion>
     <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>3.0.0-preview-27112-01</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
     <MicrosoftNETCoreAppPackageVersion>3.0.0-preview-27109-05</MicrosoftNETCoreAppPackageVersion>
-    <XunitPackageVersion>2.4.1-pre.build.4059</XunitPackageVersion>
+    <XunitPackageVersion>2.4.1</XunitPackageVersion>
     <IbcDataPackageVersion>99.99.99-master-20181112-0045</IbcDataPackageVersion>
     <IbcMergePackageVersion>4.6.0-alpha-00001</IbcMergePackageVersion>
     <XunitPerformanceApiPackageVersion>1.0.0-beta-build0015</XunitPerformanceApiPackageVersion>

src/coreclr/tests/runtest.py

@@ -791,7 +791,7 @@ def run_tests(host_os,
     #  1) git clone https://github.com/echesakovMSFT/xunit.git --branch UseConcurrentDictionaryInDependencyContextAssemblyCache --single-branch
     #  2) cd xunit
     #  3) git submodule update --init
-    #  4) powershell .\build.ps1
+    #  4) powershell .\build.ps1 -target packages -buildAssemblyVersion 2.4.1 -buildSemanticVersion 2.4.1-coreclr
     #
     # Then file "xunit\src\xunit.console\bin\Release\netcoreapp2.0\xunit.console.dll" was archived and uploaded to the clrjit blob storage.
     #
@@ -809,7 +809,7 @@ def run_tests(host_os,
 
     urlretrieve = urllib.urlretrieve if sys.version_info.major < 3 else urllib.request.urlretrieve
     zipfilename = os.path.join(tempfile.gettempdir(), "xunit.console.dll.zip")
-    url = r"https://clrjit.blob.core.windows.net/xunit-console/xunit.console.dll.zip"
+    url = r"https://clrjit.blob.core.windows.net/xunit-console/xunit.console.dll-v2.4.1.zip"
     urlretrieve(url, zipfilename)
 
     with zipfile.ZipFile(zipfilename,"r") as ziparch: