Regressions on trunk at revision 220665 vs revision 220658

[H.J. Lu ia32 Core i7]

New failures:
FAIL: gcc.dg/guality/pr54519-3.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: gcc.dg/lto/20081024 c_lto_20081024_0.o-c_lto_20081024_0.o link, -O0 -flto -fuse-linker-plugin -fno-fat-lto-objects 

New passes:
FAIL: gcc.dg/guality/pr54519-3.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 20 y == 25
FAIL: gcc.dg/guality/pr54519-3.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 20 z == 6
FAIL: gcc.dg/guality/pr54519-3.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 23 y == 117
FAIL: gcc.dg/guality/pr54519-3.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 23 z == 8