Confirmed template parsing bug: bug in error message generation.

[Robert Lipe]

> >...containing a single code snippet that demonstrates the problem...
> "extern foo<int> bar;"
> 
> Parse error, but line is well-formed; should be undeclared identifier

I cannot confirm or deny of the line is well formed, but the
(EDGFE-based) UW C++ compiler generates what looks like a more helpful
error message.

$ CC /tmp/p.cc
"/tmp/p.cc", line 1: error: foo is not a class template
  extern foo<int> bar;
         ^