[committed 2/5] libstdc++: Fix -Wdeprecated-declarations warnings

[Jonathan Wakely]

             * include/experimental/bits/shared_ptr.h (shared_ptr(auto_ptr&&))
             (operator=(auto_ptr&&)): Add diagnostic pragmas to suppress
             warnings for uses of std::auto_ptr.
             * include/experimental/type_traits (is_literal_type_v):
             Likewise, for use of std::is_literal_type.
             * include/std/condition_variable (condition_variable_any::_Unlock):
             Likewise, for use of std::uncaught_exception.


Tested powerpc64le-linux. Committed to trunk.



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