RE: regression in qmtest_libstdcpp

>Reviewing the gcc-4.0.1 source, I see the upstream tests have changed, 
>comparing them to the qmtest source (same change in 01.cc and 02.cc):
>
>-  verify_demangle("f", "error code = -2: invalid mangled name");
>+  verify_demangle("f", "float");
>
>Making the above change in the qmtest source tree and re-running 
>build_binary_testsuite, they now pass in that environment (they were 
>failing in the same manner as the binary test suite)
>
>Testing against our 10.2 release with libstdc++.so.6 built 
>from gcc-3.4.3, the tests pass.

The test changelog entry is from Feb 15, and says "Adjust for 
2005-02-13 demangler change".  I don't actually see a changelog
entry in gcc that would indicate such a change, nonetheless, 
the date on this is after the 3.4.3 release, but before the 
3.4.4, 4.0, or 4.0.1 releases.