Bug Number:730 
Test netlist: bug_730.cir

Description:
============
This test checks that an error is returned when the user tries to step a non-existent
composite parameter.

Verification
============
Run Xyce in serial on the netlist.

Xyce should exit with fatal error:

User Fatal: Error in file bug_730.cir at or near line 43
 Unrecognized fields for device Y%PDE%DIODE

Special Notes:
==============
Parallel should give the same error.
