Spaces instead of tabs.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@174348 91177308-0d34-0410-b5e6-96231b3b80d8
Driver and option support for -gsplit-dwarf. This is a part of
the DWARF5 split dwarf proposal.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@174349 91177308-0d34-0410-b5e6-96231b3b80d8
TextDiagnostic.cpp: Suppress a warning to use ptrdiff_t on i686-clang. [-Wsign-compare]

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@174353 91177308-0d34-0410-b5e6-96231b3b80d8