Regressions on trunk at revision 212318 vs revision 212311

[H.J. Lu ia32]

New failures:
FAIL: g++.dg/ipa/imm-devirt-2.C  -std=gnu++11  scan-tree-dump einline "C::_ZThn24_N1C3fooEi \\("
FAIL: g++.dg/ipa/imm-devirt-2.C  -std=gnu++1y  scan-tree-dump einline "C::_ZThn24_N1C3fooEi \\("
FAIL: g++.dg/ipa/imm-devirt-2.C  -std=gnu++98  scan-tree-dump einline "C::_ZThn24_N1C3fooEi \\("

New passes:
ERROR: g++.dg/ipa/imm-devirt-1.C  -std=gnu++11: error executing dg-final: couldn't compile regular expression pattern: parentheses () not balanced
ERROR: g++.dg/ipa/imm-devirt-1.C  -std=gnu++1y: error executing dg-final: couldn't compile regular expression pattern: parentheses () not balanced
ERROR: g++.dg/ipa/imm-devirt-1.C  -std=gnu++98: error executing dg-final: couldn't compile regular expression pattern: parentheses () not balanced
ERROR: g++.dg/ipa/imm-devirt-2.C  -std=gnu++11: error executing dg-final: couldn't compile regular expression pattern: parentheses () not balanced
ERROR: g++.dg/ipa/imm-devirt-2.C  -std=gnu++1y: error executing dg-final: couldn't compile regular expression pattern: parentheses () not balanced
ERROR: g++.dg/ipa/imm-devirt-2.C  -std=gnu++98: error executing dg-final: couldn't compile regular expression pattern: parentheses () not balanced