extptr_allocator.h (construct, destroy): Fix for C++0x mode by overloading to take allocator's pointer type.

2011-06-11  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/ext/extptr_allocator.h (construct, destroy): Fix for C++0x
	mode by overloading to take allocator's pointer type.
	* testsuite/23_containers/vector/ext_pointer/types/2.cc: New.
	* testsuite/23_containers/vector/ext_pointer/explicit_instantiation/
	2.cc: New.

From-SVN: r174958