Some P4V problem with backing out large changelist missed some files.
#codereview Robert.Manuszewski
[CL 2481366 by Jaroslaw Palczynski in Main branch]
Remove requirement for blueprint node name pins to be non-numeric values (this requirement seems to no longer be present in other areas of the engine)
Modified SGraphPinNameList to use new SNameComboBox class
[CL 2266949 by Joe Conley in Main branch]