Use AppDomain instead of Assembly.Location

As the latter can return a VSS cached location.

Author: andyleejordan

src/PowerShellEditorServices/Services/PowerShellContext/Session/PSReadLinePromptContext.cs

@@ -18,7 +18,7 @@ namespace Microsoft.PowerShell.EditorServices.Services.PowerShellContext
     internal class PSReadLinePromptContext : IPromptContext
     {
         private static readonly string _psReadLineModulePath = Path.Combine(
-            Path.GetDirectoryName(typeof(PSReadLinePromptContext).Assembly.Location),
+            AppContext.BaseDirectory,
             "..",
             "..",
             "..",
@@ -27,7 +27,7 @@ internal class PSReadLinePromptContext : IPromptContext
         // When using xUnit (dotnet test) the assemblies are deployed to the
         // test project folder, invalidating our relative path assumption.
         private static readonly string _psReadLineTestModulePath = Path.Combine(
-            Path.GetDirectoryName(typeof(PSReadLinePromptContext).Assembly.Location),
+            AppContext.BaseDirectory,
             "..",
             "..",
             "..",
@@ -89,6 +89,7 @@ internal static bool TryGetPSReadLineProxy(
         {
             readLineProxy = null;
             logger.LogTrace("Attempting to load PSReadLine");
+            Console.WriteLine($"{_psReadLineModulePath} / {_psReadLineTestModulePath}");
             using (var pwsh = PowerShell.Create())
             {
                 pwsh.Runspace = runspace;