debug container mutex association

[Andreas Schwab]

FAIL: 23_containers/list/debug/invalidation/4.cc (test for excess errors)
Excess errors:
/daten/aranym/gcc/gcc-20160926/Build/m68k-linux/libstdc++-v3/include/debug/safe_sequence.tcc:89: error: 'void __gnu_debug::_Safe_iterator_base::_M_detach_single()' is protected within this context
/daten/aranym/gcc/gcc-20160926/Build/m68k-linux/libstdc++-v3/include/debug/safe_sequence.tcc:112: error: 'void __gnu_debug::_Safe_iterator_base::_M_detach_single()' is protected within this context

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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"And now for something completely different."