The following invalid code snippet triggers a broken diagnostic on mainline:
================================================ template<typename T> void foo(int, T::x); ================================================ bug.cc:1: error: '#'template_type_parm' not supported by dump_expr#<expression error>::x' is not a type Before we got the message: bug.cc:1: error: 'T::x' is not a type -- Summary: Broken diagnostic: 'template_type_parm' not supported by dump_expr Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: diagnostic, monitored Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: reichelt at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33209