[Bug c++/24052] New: &#`label_decl' not supported by dump_expr#<expression error>

["guillaume dot melquiond at ens-lyon dot fr" <gcc-bugzilla at gcc dot gnu dot org>]

I do not think labels as values are widely used with C++ operators; I stumbled
over it only because of a typo (double &&). But in case of error, it will
produce a garbled message (tested from 3.3 to 4.1). For example,

a.cpp:3:no match for 'operator&&' in 'A() && &#'label_decl' not supported by
dump_expr#<expression error>'

Testcase:

struct A {};
bool operator&&(A const &, A const &);
int main() { A() && && b; }

-- 
           Summary: &#`label_decl' not supported by dump_expr#<expression
                    error>
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: guillaume dot melquiond at ens-lyon dot fr
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24052