*: stop using newTemp* constructors

These constructors are not recognized by pylint and now we have
no-name-in-module errors.

Because since introduction of portal types as classes there was this
idea of deprecating those in favor of using newContent(temp_object=True,
switch to this new syntax.

Since we still have to create documents in portal_trash, only change the
minimal to get coding style tests passing again.

/reviewed-on !1024
7 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

00:51:37

passed ERP5.PerformanceTest-Master

00:32:37

failed ERP5.UnitTest-Master

01:59:56

passed SlapOS.Eggs.UnitTest-Master.Python2

00:13:10

passed SlapOS.Eggs.UnitTest-Master.Python3

00:13:38

passed SlapOS.Eggs.UnitTest-luke.Python2

00:18:59

passed SlapOS.Eggs.UnitTest-luke.Python3

00:19:54