Hi,
this MR uses MuonIdHelperSvc instead of MuonIdHelperTool in several muon packages. Furthermore, some cleanup is done (e.g. using ATH_CHECK macros where possible, removing unneeded includes, not using TMath...). Also in case ToolHandles/ServiceHandles are defined inline in the headers, the interfaces are also included there and the forward declarations are removed.
Best, Nico