Allows renaming a TChain, without this the registration in the list of specials,
list of cleanups and list of datasets are corrupted

This allows for testing that there is no unexpected duplicate (duplicates are unavoidable in case
of 'multiple' pass throught the TTree cluster(s)).

See 3ee42f5a7d

This reverts commit 915d488a.

The replacement prevented the recording of the data member documentation
strings for the content of the library and thus was breaking the I/O, in
particular transientness, for thoses classes, eg TTreePerfStats.
(See below for an example).

This seems to be due to the fact that we need/must not add __ROOTCLING__
during the parsing that will be recorded in the the pch, see in
core/dictgen/src/rootcling_impl.cxx line 4334:

    // We do not want __ROOTCLING__ in the pch!
    if (!onepcm) {
       clingArgs.push_back("-D__ROOTCLING__");

So, at least for now, we need to keep using __CINT__ for the LinkDef.h
of the libraries included in the PCH.

See:

root [0] TClass::GetClass("TTreePerfStats")->GetStreamerInfo()->ls()

StreamerInfo for class: TTreePerfStats, version=7, checksum=0x1f86d003
  TVirtualPerfStats BASE            offset=  0 type= 0 ABC for collecting PROOF statistics
  int            fTreeCacheSize  offset= 16 type= 3 TTreeCache buffer size
  int            fNleaves        offset= 20 type= 3 Number of leaves in the tree

vs

root [0] TClass::GetClass("TTreePerfStats")->GetStreamerInfo()->ls()

StreamerInfo for class: TTreePerfStats, version=6, checksum=0x84181ab4
  TVirtualPerfStats BASE            offset=  0 type= 0 ABC for collecting PROOF statistics
  int            fTreeCacheSize  offset= 16 type= 3
  int            fNleaves        offset= 20 type= 3

This is to avoid changes in the behavior near a release of which options
that get enabled by default when cmake is called without arguments, as
well as which packages cause a failure when fail-on-missing=ON (packages
with builtins should not cause failure).

This partially reverts commit aad5a3bb.

This reverts commit 901f8d96.

This reverts commit 970be6a2.

This reverts commit 79150a40.

This reverts commit d7b7eb83.

This reverts commit fedad08a.

This reverts commit 2711d2fb.

This reverts commit 48aeaef8.

This reverts commit eee4144c.

This reverts commit 87d21924.

This reverts commit 2c93f75a.

This reverts commit df5d33a7.

This reverts commit 51b155d8.

This reverts commit ef620859.

This reverts commit 1ebf321d.

This reverts commit c0484b69.

This reverts commit b9716e44.

Revert "Updating Zlib/Cloudflare/CMS-externals to latest version (SIMD), together with new updates from Cloudflare (support of aarch64 and MSVC)"

This reverts commit c3bb0c282f6e8708bd42bb527ede2d5af53edb2b.

This reverts commit 7abae9cb4ea493c7e897e756689ccf0133bf15ed.

This reverts commit 8374c3c949c579e48c15575e804d314151fa25f9.

This reverts commit f028b5f5f85a4ebae9e69b9509a4ad9f55477707.

This reverts commit 5ed407d35cf205db7a648ccbecd15618f6a11ec0.

Revert "Refactoring deflate.c to support more compilation cases (x86_64[SIMD/nonSIMD], Aarch64[Neon/CRC32], Windows)"

This reverts commit cdb3ef83aeda1638b8f769a2d8be2693933ceb99.

This reverts commit 71116468507ddfa06264b4d4e83826a5f272ffc8.

Revert "Fixing compilation on Mac OS X: the implementation of target attribute is using the STT_GNU_IFUNC symbol type, disabling its usage in zlib for Mac"

This reverts commit 63345dab49441fdf6f9098ce797c7802816e6326.

This reverts commit c168486449b665e7191bc6f729f802c68e7ecd90.

Revert "Adding CMake macro checking version of binutils for correct handling of zlib compilation on SL6"

This reverts commit 531f493ac0b7cb11c8f829d483b7d0afbf08ad9c.

This reverts commit dd464d715abf89faea271e93cb455ae667fb1aa8.