Folder: Allow to create temp_objects anywhere, without checking if it's in...

Folder: Allow to create temp_objects anywhere, without checking if it's in allowed types for that Portal Type.

Until now, creating a temp_object with newContent() required for the temp_object
to be in allowed types. However, this was inconsistent with (now deprecated)
newTemp*() functions (calling directly constructInstance()) not having such
limitations.

Besides lifting such limitation being needed to properly replace newTemp*() calls,
portal_trash.newContent() pattern is already commonly used used here meaning there
is a real use case.

This also fixes testBanking* failures: newTempCashDeliveryLine() created objects
on 'Cash Inventory' and latter call Delivery.isAccountable() which does not exist on
portal_trash.

See also:
  04b49859
  03678123d60c07d58638a16433d599ae04b54194

bt5/erp5_banking_core/DocumentTemplateItem/portal_components/document.erp5.CashInventory.py

@@ -63,7 +63,7 @@ class CashInventory(Inventory, BankingOperation):
       setting another kind of temp delivery line.
       """
       def newTempCashDeliveryLine(self, inventory_id):
-        return self.getPortalObject().portal_trash.newContent(
+        return self.newContent(
           portal_type='Cash Delivery Line',
           temp_object=True,
           id=inventory_id)

product/ERP5Type/Core/Folder.py

@@ -201,10 +201,9 @@ class FolderMixIn(ExtensionClass.Base):
         portal_type = allowed_content_type_list[0].id
       else:
         raise ValueError('Creation disallowed')
-    else:
+    elif not temp_object:
       type_info = pt.getTypeInfo(container)
-      if type_info is not None and not type_info.allowType(portal_type) and \
-          'portal_trash' not in container.getPhysicalPath():
+      if type_info is not None and not type_info.allowType(portal_type):
         raise ValueError('Disallowed subobject type: %s on %r' % (portal_type, container))
 
     type_info = pt.getTypeInfo(portal_type)