Regressions on trunk at revision 257121 vs revision 257117

Sat Jan 27 22:06:00 GMT 2018

New failures:

New passes:
FAIL: gfortran.dg/string_1.f90   -O   (test for errors, line 10)
FAIL: gfortran.dg/string_1.f90   -O   (test for errors, line 7)
FAIL: gfortran.dg/string_1.f90   -O   (test for errors, line 8)
FAIL: gfortran.dg/string_1.f90   -O   (test for errors, line 9)
FAIL: gfortran.dg/string_1.f90   -O  (test for excess errors)