[clang][dataflow] Dummy patch 1

clang/include/clang/Analysis/FlowSensitive/Transfer.h

struct TransferOptions {
   llvm::Optional<ContextSensitiveOptions> ContextSensitiveOpts;
 };
 
 /// Maps statements to the environments of basic blocks that contain them.
 class StmtToEnvMap {
 public:
   virtual ~StmtToEnvMap() = default;
 
+  // hello
+
   /// Returns the environment of the basic block that contains `S` or nullptr if
   /// there isn't one.
   /// FIXME: Ensure that the result can't be null and return a const reference.
   virtual const Environment *getEnvironment(const Stmt &S) const = 0;
 };
 
 /// Evaluates `S` and updates `Env` accordingly.
 ///