Exclude '-Comobject' parameter of 'New-Object' on unsupported platforms (PowerShell#4922)

Author: iSazonov

src/Microsoft.PowerShell.Commands.Utility/commands/utility/new-object.cs

@@ -31,12 +31,12 @@ public sealed class NewObjectCommand : PSCmdlet
         [Parameter(ParameterSetName = netSetName, Mandatory = true, Position = 0)]
         public string TypeName { get; set; } = null;
 
-
+#if !UNIX
         private Guid _comObjectClsId = Guid.Empty;
         /// <summary> the ProgID of the Com object</summary>
         [Parameter(ParameterSetName = "Com", Mandatory = true, Position = 0)]
         public string ComObject { get; set; } = null;
-
+#endif
 
         /// <summary>
         /// The parameters for the constructor
@@ -245,6 +245,7 @@ protected override void BeginProcessing()
                      "CannotFindAppropriateCtor",
                      ErrorCategory.ObjectNotFound, null));
             }
+#if !UNIX
             else // Parameterset -Com
             {
                 int result = NewObjectNativeMethods.CLSIDFromProgID(ComObject, out _comObjectClsId);
@@ -295,10 +296,12 @@ protected override void BeginProcessing()
                 }
                 WriteObject(comObject);
             }
+#endif
         }//protected override void BeginProcessing()
 
         #endregion Overrides
 
+#if !UNIX
         #region Com
 
         private object SafeCreateInstance(Type t, object[] args)
@@ -467,6 +470,7 @@ private object CreateComObject()
         }
 
         #endregion Com
+#endif
 
         // HResult code '-2147417850' - Cannot change thread mode after it is set.
         private const int RPC_E_CHANGED_MODE = unchecked((int)0x80010106);