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	* pt.c (specializations_of_same_template_p): New function.
	(unify): Use it.
	* search.c (get_template_base): Use it.
	(get_template_base_recursive): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@22987 138bc75d-0d04-0410-961f-82ee72b054a4