Hold scoped_gc_epoch for fewer instructions
Hold scoped_gc_epoch for fewer instructions

bowlofstew/sv6,bowlofstew/sv6,aclements/sv6,bowlofstew/sv6,aclements/sv6,aclements/sv6,bowlofstew/sv6,bowlofstew/sv6,aclements/sv6,aclements/sv6