Add check for ScriptBlock wrapped in PSObject to $using used in ForEach-Object -Parallel (PowerShell#17234)

Author: ryneandal

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

@@ -419,7 +419,7 @@ private void InitParallelParameterSet()
             // in which they were created.
             foreach (object item in _usingValuesMap.Values)
             {
-                if (item is ScriptBlock)
+                if (item is ScriptBlock or PSObject { BaseObject: ScriptBlock })
                 {
                     ThrowTerminatingError(
                         new ErrorRecord(

test/powershell/Modules/Microsoft.PowerShell.Utility/Foreach-Object-Parallel.Tests.ps1

@@ -5,6 +5,7 @@ Describe 'ForEach-Object -Parallel Basic Tests' -Tags 'CI' {
 
     BeforeAll {
         $sb = { "Hello!" }
+        $psosb = [psobject]{ "Hello!" }
     }
 
     It "Verifies dollar underbar variable" {
@@ -341,6 +342,11 @@ Describe 'ForEach-Object -Parallel Basic Tests' -Tags 'CI' {
         { 1..1 | ForEach-Object -Parallel { $using:sb } } | Should -Throw -ErrorId 'ParallelUsingVariableCannotBeScriptBlock,Microsoft.PowerShell.Commands.ForEachObjectCommand'
     }
 
+    It 'Verifies error for using script block variable in PSObject' {
+
+        { 1..1 | ForEach-Object -Parallel { $using:psosb } } | Should -Throw -ErrorId 'ParallelUsingVariableCannotBeScriptBlock,Microsoft.PowerShell.Commands.ForEachObjectCommand'
+    }
+
     It 'Verifies error for script block piped variable' {
 
         $actualError = $sb | ForEach-Object -Parallel { "Hello" } 2>&1