Driver: Sink Driver/Compilation into clang::driver namespace.
 - Add OptTable instance to Driver.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66063 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Compilation.cpp b/lib/Driver/Compilation.cpp
index 7f3454b..a636e2d 100644
--- a/lib/Driver/Compilation.cpp
+++ b/lib/Driver/Compilation.cpp
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Driver/Compilation.h"
-using namespace clang;
+using namespace clang::driver;
 
 Compilation::Compilation() {
 }