MuonCSC_CnvTools: Fix clang warning.

See merge request atlas/athena!20985

add resetCache() to reset the cache for Neutral/Track Particle like the Vertex

See merge request atlas/athena!20970

Enable thread safety checker for some trigger packages

See merge request atlas/athena!20956

xAODEventShape: Enable thread-safety checking.

See merge request atlas/athena!20953

changing const G4String to const char *

See merge request atlas/athena!20945

CxxUtils: Fix potential locking issue in ConcurrentRangeMap test.

See merge request atlas/athena!20979

xAODTrigger: Fix compilation failure with clang.

See merge request atlas/athena!20986

HitAnalysis: Comply with ATLAS naming conventions.

See merge request atlas/athena!20988

RDOAnalysis: Comply with ATLAS naming conventions.

See merge request atlas/athena!20987

Remove LAr cabling svc

See merge request atlas/athena!20758

Updates for G4AtlasApps unit and ART-build tests

Closes ATLASSIM-4012

See merge request atlas/athena!20966

Complete migration to V2 of TrigComposite Aux

See merge request atlas/athena!20959

pseudomerge of TrigHLTMonitoring  packages from rel 21 to master, ATR-18999

See merge request atlas/athena!20813

TileRec: Move large arrays into separately-allocated objects.

See merge request atlas/athena!20982

TrigPartialEventBuilding: cmake fix

See merge request atlas/athena!20984

ART egammaValidation. Adding prefix to input containers

See merge request !20968

New configuration system for jet reconstruction -- take 2

See merge request atlas/athena!20964

TileByteStream: Another pattern to ignore.

See merge request atlas/athena!20983

Disable unsupported unit-tests for master,AthSimulation builds

Closes ATLASSIM-4013

See merge request atlas/athena!20967

Sweeping !20668 from 21.0 to master.
Fix name of the test mc_pp_v7_rdotoaodslim_build

See merge request atlas/athena!20887

`test_AtlasG4_cosmics_configuration.py` and `test_TestBeam_tf_configuration.py`
have been updated to take into account the fact that
`xAODMaker::EventInfoCnvAlg/xAODMaker::EventInfoCnvAlg` has been added to
the start of the AlgSequence of all jobs which generate events on-the-fly.

Should fix ATLASSIM-4012.

Configuration of ATLAS Detector Description using ComponentAccumulator

See merge request atlas/athena!20770

Private data members should start with m_.

Private data members should start with m_.

operator<< should be declared within the namespace of its argument
so that argument-dependent lookup will work properly.

clang warning: Unused private data member.

cmake typo: PRIVATE used instead of PRIVATE_LINK_LIBRARIES.

Update reference file comparison so as to not fail if SimFlags are
not available.

ubsan can give false positives for classes using virtual derivation that
have excessive space in member variables.  Resolve by moving the large
member arrays to a separately allocated object.

Fixes ubsan warnings seen in gcc8 dbg build.

m_inGrace should be protected by the mutex.
Only affects the unit test.

Should fix ATLASSIM-4013.