In r208350 I improved the diagnostic location of the initializer-list
pedwarn in C++98 mode on crash90.C, but didn't adjust the testcase to verify
the location, so reverting that change didn't break regression testing.
gcc/testsuite/ChangeLog:
* g++.dg/template/crash90.C: Check location of pedwarn.
struct A ;
template < typename >
struct B ;
-template < typename T , A < B < T > {} // { dg-error "parse error|non-type|initializer" }
+template < typename T , A < B < T > {} // { dg-error "parse error|non-type" }
// { dg-error "39:expected" "" { target *-*-* } .-1 }
+// { dg-error "37:initializer list" "" { target c++98_only } .-2 }