[clang] [flang] [Flang][Sanitizer] Support sanitizer flag for Flang Driver. (PR #137759)

[Tarun Prabhu via cfe-commits]

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@@ -11,17 +11,46 @@
 //===----------------------------------------------------------------------===//
 
 #include "flang/Frontend/CodeGenOptions.h"
+#include "llvm/TargetParser/Triple.h"
 #include <optional>
 #include <string.h>
 
 namespace Fortran::frontend {
 
+using namespace llvm;
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tarunprabhu wrote:

We generally do not use `using namespace llvm` in flang.

https://github.com/llvm/llvm-project/pull/137759