test_search.py: Fix return calls
test_search.py: Fix return calls

* Return from xp object (cupy object) as xp.method_name(array_name)

Signed-off-by: Harshal Chaudhari <a2c32c4f5c5a674abda9260c07a923725d880b02@gmail.com>

cupy/cupy,cupy/cupy,cupy/cupy,cupy/cupy