Makefile.in (OBJS-common): Add tree-data-ref.o.

	* Makefile.in (OBJS-common): Add tree-data-ref.o.
	(tree-scalar-evolution.o): Add missing dependences on tree-pass.h flags.h.
	(tree-data-ref.o): New rule.
	* lambda.h: New file.
	* tree-data-ref.c: New file.
	* tree-data-ref.h: New file.
	* tree.c (int_cst_value, tree_fold_gcd): New functions.
	* tree.h (int_cst_value, tree_fold_gcd): Declared here.

From-SVN: r84630