* Add some 'cond-rw' pass related tests

* Add some 'cond-rw' pass related tests

	* test/src/comp-tests.el (comp-tests-cond-rw-checked-function):
	Declare var.
	(comp-tests-cond-rw-checker-val): New function.
	(comp-tests-cond-rw-checker-type): Declare var.
	(comp-tests-cond-rw-checker-type): New function.
	(comp-tests-cond-rw-0-var): Declare var.
	(comp-tests-cond-rw-0, comp-tests-cond-rw-1, comp-tests-cond-rw-2)
	(comp-tests-cond-rw-3, comp-tests-cond-rw-4)
	(comp-tests-cond-rw-5): New testcases.