37742463bc9e4ee864291ae3d3ee12ee93fd1bc1 Add line numbers of equations in preprocessor error messages.

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 420 | PASS: 418 | FAIL: 0 | XFAIL: 2 | XPASS: 0

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 418 | PASS: 416 | FAIL: 0 | XFAIL: 2 | XPASS: 0

A full log can be found on karaba in '/tmp/dynare-master-check-fiC0uef9Ux.log'.