These can be generally described as removing redundant condition checks, using logical operators instead of bitwise operators, removal of redundant parenthesis, and consistent use of pragma push and pragma pop. There is very little observable behavior change in this CL.
Changes that required further review are pending in 2489753
[CL 2489804 by Dan Oconnor 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]
