The following invalid code snippet triggers a broken diagnostic on mainline:
======================================================================
template<template<typename> class...> struct A;
template<template<typename...> class... B> struct A<B...> {};
======================================================================
bug.cc:3: error: type/value mismatch at argument 1 in template parameter list
for 'template<template<class> class<template-parameter-1-1> > struct A'
bug.cc:3: error: expected a template of type 'template<class>
class<template-parameter-1-1>', got '#'type_pack_expansion' not supported by
dump_decl#<declaration error>'
--
Summary: [4.3 regression] Broken diagnostic:
'type_pack_expansion' not supported by dump_decl
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=33213
