[Driver] Refactor clang driver to use LLVM's Option library
The big changes are:
- Deleting Driver/(Arg|Opt)*
- Rewriting includes to llvm/Option/ and re-sorting
- 'using namespace llvm::opt' in clang::driver
- Fixing the autoconf build by adding option everywhere
As discussed in the review, this change includes using directives in
header files. I'll make follow up changes to remove those in favor of
name specifiers.
Reviewers: espindola
Differential Revision: http://llvm-reviews.chandlerc.com/D975
llvm-svn: 183989
diff --git a/clang/lib/Driver/Action.cpp b/clang/lib/Driver/Action.cpp
index 2b5bbee..ddd2d59 100644
--- a/clang/lib/Driver/Action.cpp
+++ b/clang/lib/Driver/Action.cpp
@@ -11,6 +11,7 @@
#include "llvm/Support/ErrorHandling.h"
#include <cassert>
using namespace clang::driver;
+using namespace llvm::opt;
Action::~Action() {
if (OwnsInputs) {