Regressions on trunk at revision 164366 vs revision 164354

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g1 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g1 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g1 -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+ (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+ -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+ -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+1 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+1 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+1 -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+3 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs+3 -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs1 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs1 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs1 -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs3 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gstabs3 -O3 (test for excess errors)
FAIL: gcc.dg/pr27898.c (test for excess errors)
FAIL: gcc.dg/pr28706.c (test for excess errors)
FAIL: gcc.dg/pr28712.c (test for excess errors)
FAIL: gcc.dg/pr30762-1.c (test for excess errors)
FAIL: gcc.dg/pr31529-1.c (test for excess errors)
FAIL: gcc.dg/pr34457-1.c (test for excess errors)
FAIL: gcc.dg/pr34668-1.c (test for excess errors)
FAIL: gcc.dg/pr34989-1.c (test for excess errors)
FAIL: gcc.dg/pr43557-1.c (test for excess errors)

New passes: