This tests catching of divide by 0 in calc() at parse time

100px / 0 => 
100px / (0) => 
100px / (2 - 2) => 
100px / (2 - (-62 + 64)) => 
100px * (1 / 0) => 
100px * (1 / (0)) => 
100px * (1 / (2 - 2)) => 
100px * (1 / (2 - (-62 + 64))) =>