Regressions on trunk at revision 205118 vs revision 205110

[H.J. Lu ia32 Core 2/i7]

New failures:
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so (internal compiler error)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so (test for excess errors)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 10)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 13)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 26)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 27)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 33)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 34)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 40)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 41)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 42)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 43)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 44)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 46)
FAIL: g++.dg/plugin/self-assign-test-1.C -fplugin=./selfassign.so  (test for warnings, line 47)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so (internal compiler error)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so (test for excess errors)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 10)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 13)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 26)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 27)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 33)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 34)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 40)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 41)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 42)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 46)
FAIL: g++.dg/plugin/self-assign-test-2.C -fplugin=./selfassign.so  (test for warnings, line 47)
FAIL: g++.dg/plugin/self-assign-test-3.C -fplugin=./selfassign.so (internal compiler error)
FAIL: g++.dg/plugin/self-assign-test-3.C -fplugin=./selfassign.so (test for excess errors)

New passes:
FAIL: g++.dg/plugin/selfassign.c compilation