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	use posn - 1 to index into tokens array.
	(maybe_paste_with_next): Adjust caller.

	* gcc.dg/cpp/paste8.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@36128 138bc75d-0d04-0410-961f-82ee72b054a4