Fix symbol test regression oopsie

Author: JustinGrote

test/PowerShellEditorServices.Test.Shared/SymbolDetails/SymbolDetails.ps1

@@ -1,4 +1,6 @@
 Write-Host -ForegroundColor Black 'Test'
+# References Test uses this one
+Get-Process -Name 'powershell*'
 
 <#
 .Synopsis

test/PowerShellEditorServices.Test/Language/SymbolsServiceTests.cs

@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Management.Automation;
+using System.Runtime.InteropServices;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging.Abstractions;
@@ -32,6 +33,7 @@ public class SymbolsServiceTests : IAsyncLifetime
         private PsesInternalHost psesHost;
         private WorkspaceService workspace;
         private SymbolsService symbolsService;
+        private static readonly bool isWindows = RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
 
         public async Task InitializeAsync()
         {
@@ -907,7 +909,7 @@ public void FindsSymbolsWithNewLineInFile()
         [SkippableFact()]
         public void FindsSymbolsInDSCFile()
         {
-            // Skip.If(!s_isWindows, "DSC only works properly on Windows.");
+            Skip.If(!isWindows, "DSC only works properly on Windows.");
 
             IEnumerable<SymbolReference> symbols = FindSymbolsInFile(FindSymbolsInDSCFile.SourceDetails);
             SymbolReference symbol = Assert.Single(symbols, i => i.Type == SymbolType.Configuration);