regex_constants icase and collate for matching a single char and for matching back references
regex_constants icase and collate for matching a single char and for matching back references

git-svn-id: 273b07cebdae5845b4a75aae04570b978db9eb50@108178 91177308-0d34-0410-b5e6-96231b3b80d8

lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx