Regressions on master at commit r12-453 vs commit r12-347 on Linux/x86_64

[H.J. Lu]

New failures:
FAIL: g++.dg/gomp/clause-3.C  -std=c++14  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++14  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++14  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++17  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++17  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++17  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++2a  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++2a  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++2a  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++98  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++98  (test for errors, line 59)
FAIL: g++.dg/gomp/clause-3.C  -std=c++98  (test for errors, line 59)
FAIL: g++.dg/modules/xtreme-header-2_b.C -std=c++2a (internal compiler error)
FAIL: g++.dg/modules/xtreme-header-2_b.C -std=c++2a (test for excess errors)

New passes: