Added test for FROM - ABOVE - BY.
Added test for ABOVE - FROM - BY.
Added test for DOWNFROM - ABOVE - BY.
Added test for FROM - BELOS - BY with several side effects.
Added test for FROM - BY - BELOW with several side effects.
Added test for BELOW - BY - FROM with several side effects.
Added test for BY - BELOW - FROM with several side effects.
Added test for FROM - UPTO.