Get PowerShell version in PSVersionInfo using assembly attribute instead of FileVersionInfo (#14332)

src/System.Management.Automation/engine/PSVersionInfo.cs

@@ -2,8 +2,8 @@
 // Licensed under the MIT License.
 
 using System.Collections;
-using System.Diagnostics;
 using System.Globalization;
+using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;
 
@@ -77,8 +77,8 @@ namespace System.Management.Automation
         {
             s_psVersionTable = new PSVersionHashTable(StringComparer.OrdinalIgnoreCase);
 
-            string assemblyPath = typeof(PSVersionInfo).Assembly.Location;
-            string productVersion = FileVersionInfo.GetVersionInfo(assemblyPath).ProductVersion;
+            Assembly currentAssembly = typeof(PSVersionInfo).Assembly;
+            string productVersion = currentAssembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>().InformationalVersion;
 
             // Get 'GitCommitId' and 'PSVersion' from the 'productVersion' assembly attribute.
             //

test/powershell/Host/Startup.Tests.ps1

@@ -22,7 +22,6 @@ Describe "Validate start of console host" -Tag CI {
             'System.ComponentModel.TypeConverter.dll'
             'System.Console.dll'
             'System.Data.Common.dll'
-            'System.Diagnostics.FileVersionInfo.dll'
             'System.Diagnostics.Process.dll'
             'System.Diagnostics.TraceSource.dll'
             'System.Diagnostics.Tracing.dll'
@@ -67,6 +66,7 @@ Describe "Validate start of console host" -Tag CI {
         if ($IsWindows) {
             $allowedAssemblies += @(
                 'Microsoft.PowerShell.CoreCLR.Eventing.dll'
+                'System.Diagnostics.FileVersionInfo.dll'
                 'System.DirectoryServices.dll'
                 'System.Management.dll'
                 'System.Security.Claims.dll'
@@ -76,10 +76,7 @@ Describe "Validate start of console host" -Tag CI {
         }
         else {
             $allowedAssemblies += @(
-                'System.Collections.Immutable.dll'
-                'System.IO.MemoryMappedFiles.dll'
                 'System.Net.Sockets.dll'
-                'System.Reflection.Metadata.dll'
             )
         }