Regressions on master at commit r12-7483 vs commit r12-7471 on Linux/x86_64

[H.J. Lu]

New failures:
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/kernels-decompose-1.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O2  (test for excess errors)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/kernels-decompose-1.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O2  (test for excess errors)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/kernels-decompose-1.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O2  (test for excess errors)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/kernels-decompose-1.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O2  (test for excess errors)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/kernels-decompose-1.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O2  (test for excess errors)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/kernels-decompose-1.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O2  (test for excess errors)

New passes:
FAIL: gcc.dg/deprecated.c (test for excess errors)
FAIL: gcc.dg/deprecated.c (test for excess errors)
FAIL: gcc.dg/deprecated.c (test for excess errors)
FAIL: gcc.dg/deprecated.c  (test for warnings, line 28)
FAIL: gcc.dg/deprecated.c  (test for warnings, line 28)
FAIL: gcc.dg/deprecated.c  (test for warnings, line 28)
FAIL: g++.dg/warn/Wstringop-overflow-6.C  -std=gnu++20 (test for excess errors)
FAIL: g++.dg/warn/Wstringop-overflow-6.C  -std=gnu++20 (test for excess errors)
FAIL: g++.dg/warn/Wstringop-overflow-6.C  -std=gnu++20 (test for excess errors)