incgen: Use distinct names for update/assignment stub arguments.
incgen: Use distinct names for update/assignment stub arguments.

* da/compiler/incgen.py:

  - Use event.name instead of "initevent" as parameter name for event
    update/assignment stubs.

  - No need to include process name in event stub names since event names
    already includes process name.

mayli/DistAlgo,mayli/DistAlgo,sghosh1991/distalgo,sghosh1991/distalgo