- RResultPtr now stores a raw pointer intead of a weak_ptr
- weak_ptr validity checks have been removed since RLoopManager cannot
  go out of scope before these other entities

and adapt test.

This reverts commit 5993be60, reversing
changes made to f6b75592.

* Revert "[cmake] Narrow the list of included directories."

This reverts commit 88c16588.

* Revert "[cxxmodules] Build cling runtime into module."

This reverts commit 76a9ce75.

therewith for tens of widely used classes such as variables, constants,
distributions and combinations thereof.

this was due to an improper assumption in the way in which the binning
was accessed.

therewith for tens of widely used classes such as variables, constants,
distributions and combinations thereof.

XrdSecEntity::Reset() is only available in newer versions of XRootD.

ROOT-9595 #close

but add a comment to the jitted code in order to obtain a clear error message if
the user tries to use this type in a jitted action/transformation later in the chain.