Add MemorySanitizer annotations in gtest printers. Also remove unused variable kPathSeparatorString.


git-svn-id: http://googletest.googlecode.com/svn@669 861a406c-534a-0410-8894-cb66d6ee9925
Fix warnings encountered with clang -Wall.


git-svn-id: http://googletest.googlecode.com/svn@670 861a406c-534a-0410-8894-cb66d6ee9925