if the nul-terminatedness property is important for clients.
Also, don't return the same CXString multiple times. This did not create a
correctness issue in practice because the CXString was of an CXS_Unmanaged
kind, and destruction was a no-op.
llvm-svn: 175455
get the diagnostic category name from a serialized diagnostic when the version of libclang used
to read the diagnostic file is newer than the clang that emitted the diagnostic file.
llvm-svn: 154567
Alexander Kornienko