Keep track of STARS SAFE_FUNC in IRDB

libIRDB/include/core/function.hpp

libIRDB/src/core/fileir.cpp

libIRDB/src/core/function.cpp

tools/meds2pdb/meds2pdb.cpp

tools/selective_cfi/scfi_driver.cpp

tools/selective_cfi/scfi_instr.cpp

tools/selective_cfi/scfi_instr.hpp