MATCH: Fix PR 109834, ICE with popcount combined with bswap

MATCH: Fix PR 109834, ICE with popcount combined with bswap

After r14-673-gc0dd80e4c4c3, there was a check in the match
patterns which was checking the type is unsigned but
instead of using the type, the patch used the expression.
This adds the needed TREE_TYPE so get the correct answer and don't ICE.

Committed as obvious after a bootstrap/test on x86_64-linux-gnu.

	PR tree-optimization/109834

gcc/ChangeLog:

	* match.pd (popcount(bswap(x))->popcount(x)): Fix up unsigned type checking.
	(popcount(rotate(x,y))->popcount(x)): Likewise.

gcc/testsuite/ChangeLog:

	* gcc.c-torture/compile/pr109834-1.c: New test.
	* gcc.dg/tree-ssa/pr109834-1.c: New test.