Add transitive inferred range processing.

Add transitive inferred range processing.

Rewalk statements at the end of a block to see if any inferred ranges
affect earlier calculations and register those as inferred ranges.

	gcc/
	PR tree-optimization/104530
	* gimple-range-cache.cc (ranger_cache::register_inferred_value):
	New.  Split from:
	(ranger_cache::apply_inferred_ranges): Move setting cache to
	separate function.
	* gimple-range-cache.h (register_inferred_value): New prototype.
	* gimple-range-infer.cc (infer_range_manager::has_range_p): New.
	* gimple-range-infer.h (has_range_p): New prototype.
	* gimple-range.cc (register_transitive_inferred_ranges): New.
	* gimple-range.h (register_transitive_inferred_ranges): New proto.
	* tree-vrp.cc (rvrp_folder::fold_stmt): Check for transitive inferred
	ranges at the end of the block before folding final stmt.

	gcc/testsuite/
	* gcc.dg/pr104530.c: New.