Regressions on trunk at revision 186358 vs revision 186350

[H.J. Lu x32]

New failures:

New passes:
ERROR: tcl error sourcing ../../../../src-trunk/libgomp/testsuite/../../gcc/testsuite/lib/prune.exp.
ERROR: tcl error sourcing ../../../../src-trunk/libitm/testsuite/../../gcc/testsuite/lib/prune.exp.