re PR libstdc++/48430 (std::hash partial specialization for std::unique_ptr and std::shared_ptr are using unary_function)

2011-07-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/48430
	* include/bits/shared_ptr.h (struct hash<shared_ptr<>>): Use
	__hash_base.
	* include/bits/unique_ptr.h (struct hash<unique_ptr<>>): Likewise.

From-SVN: r176405