[Bug c++/11862] New: ICE on illegal code, in cp_parser_template_id, at cp/parser.c:7515

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11862

           Summary: ICE on illegal code, in cp_parser_template_id, at
                    cp/parser.c:7515
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gccbugs at contacts dot eelis dot net
                CC: gcc-bugs at gcc dot gnu dot org

The following single (illegal) line:

template <typename> void x (y); x<

causes an ICE in GCC version 3.4 20030723:

t.cpp:1: error: variable or field `x' declared void
t.cpp:1: error: template declaration of `int x'
t.cpp:1: error: `y' was not declared in this scope
t.cpp:2: internal compiler error: in cp_parser_template_id, at cp/parser.c:7515

GCC version 3.2.3 reports the following errors:

t.cpp:1: variable or field `x' declared void
t.cpp:1: template declaration of `int x'
t.cpp:2: parse error at end of input

and doesn't end with an ICE (btw: those first two aren't very good errors).

(Is this phenomenon of bugs being introduced in newer versions known as
'regression'?)