Fix errors on CoreCLR Windows port

test/powershell/Get-RunspaceDebug.Tests.ps1

@@ -3,7 +3,8 @@ Describe "Get-RunspaceDebug" {
     Context "Check return types of RunspaceDebug" {
 
         It "Should return Microsoft.Powershell.Commands.PSRunspaceDebug as the return type" {
-            (Get-RunspaceDebug).GetType() | Should Be Microsoft.Powershell.Commands.PSRunspaceDebug
+            $rs = Get-RunspaceDebug
+            $rs[0].GetType().Name | Should Be PSRunspaceDebug
         }    
     }
 }