Give argtype struct names a different prefix than probe struct names. Otherwise it's possible to declare SDT probes in such a way that a name collision occurs, causing an unexpected compilation error.
Give argtype struct names a different prefix than probe struct names.
Otherwise it's possible to declare SDT probes in such a way that a name
collision occurs, causing an unexpected compilation error.

Approved by:	re (gjb)
MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase