Patch: stl_tree.h

[Dhruv Matani]

Hello,
	This is a patch for stl_tree.h, which makes the _M_key_compare data
member s function, so that the specialization of _M_impl for PODs can be
used correctly.

I have attached another test, which shows the difference between the
sizes when used with a function comparator.

-- 
        -Dhruv Matani.
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2004-04-02  Dhruv Matani  <dhruvbird@gmx.net>
	
	* include/bits/stl_tree.h: Changed the _M_key_compare member to a
	function, so that the _M_impl's member can be accessed with equal
	ease for either the normal version, or the specialization for
	PODs. This reduces the size of the red-black tree by 4-bytes for
	optimizable struct comparators.
	
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