c++/8476: SIGSEGV on explicit call of dtor of static member in template

[Joe Buck]

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8476

This is a duplicate of PR 8372.  It is exactly the same core dump in 
cc1plus, with
exactly the same description, so I will close it.  8372 remains a 
high-priority
regression.