Bug Number: 206
Test netlist: bug_206.cir

Description:
============
This test checks that a a subcircuit instance line with a missing or misspelled
subcircuit name is properly flagged. 

Verification
============
This test should abort with the following message:

User Fatal: Error in file bug_206.cir at or near line 3
 Problem locating subcircuit: 0
  Check for missing or misspelled subcircuit name.


  *** Xyce Abort ***

Special Notes:
==============
Parallel testing is not needed for this case.
