Fix incorrect position of a parameter which resulted in the args passed as input instead of as args (PowerShell#4963)

Author: SteveL-MSFT

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

@@ -686,7 +686,7 @@ public Collection<PSObject> InvokeScript(string script)
         /// <exception cref="FlowControlException"></exception>
         public Collection<PSObject> InvokeScript(string script, params object[] args)
         {
-            return InvokeScript(script, true, PipelineResultTypes.None, args);
+            return InvokeScript(script, true, PipelineResultTypes.None, null, args);
         }
 
         /// <summary>
@@ -712,7 +712,12 @@ public Collection<PSObject> InvokeScript(
             try
             {
                 _context.EngineSessionState = sessionState.Internal;
-                return InvokeScript(scriptBlock, false, PipelineResultTypes.None, null, args);
+                return InvokeScript(
+                    sb:scriptBlock,
+                    useNewScope:false,
+                    writeToPipeline:PipelineResultTypes.None,
+                    input:null,
+                    args:args);
             }
             finally
             {

test/powershell/engine/Api/BasicEngine.Tests.ps1

@@ -13,4 +13,11 @@ Describe 'Basic engine APIs' -Tags "CI" {
             $result[0].PSSnapIn.Name | Should Be "Microsoft.WSMan.Management"
         }
     }
+
+    Context 'executioncontext' {
+        It 'args are passed correctly' {
+            $result = $ExecutionContext.SessionState.InvokeCommand.InvokeScript('"`$args:($args); `$input:($input)"', 1, 2, 3)
+            $result | Should BeExactly '$args:(1 2 3); $input:()'
+        }
+    }
 }