Actually remove the members of CaretDiagnostic no longer in use for
tracking the start and stop of macro expansion suppression. Also remove
the Columns variable which was just a convenience variable based on
DiagOpts. Instead we materialize it in the one piece of code that cared.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140475 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed