ObjectTypeBuilder: do not drop first argument when not binding a member

Change-Id: I1aa39a3db11d3953ac19adcee8e25262c5ead68b
Reviewed-on: http://gerrit.aldebaran.lan/51023
Reviewed-by: pdaouadi <pdaouadi@aldebaran-robotics.com>
Tested-by: pdaouadi <pdaouadi@aldebaran-robotics.com>
Session: bind loadService

Change-Id: Icfbbc2df132cbfc3264024256ad8d5721affed8d
Reviewed-on: http://gerrit.aldebaran.lan/51024
Tested-by: gerrit
Reviewed-by: pdaouadi <pdaouadi@aldebaran-robotics.com>
Tested-by: pdaouadi <pdaouadi@aldebaran-robotics.com>