texmath-0.7: tests/writers/primes1.tex

x^{2} + 2^{2} + x^{\prime} + x^{'} + x^{\operatorname{''}} + x\prime + {x^{'}}^{'} + {x^{'}}^{2} + x^{' + '} + {x^{'}}^{'} + x^{'^{'}} + '^{'} + '^{'}