[Bug c++/33212] New: [4.3 regression] Broken diagnostic: 'trait_expr' not supported by dump_expr

[reichelt at gcc dot gnu dot org]

The following invalid code snippet triggers a broken diagnostic on mainline:

======================================================================
template<int> void foo()
{
  __is_class((int);
}
======================================================================

bug.cc: In function 'void foo()':
bug.cc:3: error: expected type-specifier before '(' token
bug.cc:3: error: expected `)' before '(' token
bug.cc:3: error: expected primary-expression before 'int'
bug.cc:3: error: '#'trait_expr' not supported by dump_expr#<expression error>'
cannot be used as a function


-- 
           Summary: [4.3 regression] Broken diagnostic: 'trait_expr' 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=33212