Revert "generic commit"

This reverts commit 6900a62.

Author: tim-pugh

clang/include/clang/AST/RecordFieldReorganizer.h

@@ -37,15 +37,7 @@ class RecordFieldReorganizer {
 };
 
 class Randstruct : public RecordFieldReorganizer {
-public:
-  Randstruct(std::string seed) : Seq(seed.begin(), seed.end()), rng(Seq) {}
-private:
-  std::seed_seq Seq;
-  std::default_random_engine rng;
 protected:
-  virtual SmallVector<FieldDecl *, 64> randomize() override;
-  SmallVector<Decl *, 64> Randstruct::perfrandomize(const ASTContext &ctx,
-                                      SmallVector<Decl *, 64> fields);
   virtual void reorganize(const ASTContext &C, const RecordDecl *D,
                           SmallVector<Decl *, 64> &NewOrder) const override;
 };

clang/lib/AST/RecordFieldReorganizer.cpp

@@ -144,16 +144,14 @@ bool BitfieldRun::canFit(size_t size) const {
 
 bool BitfieldRun::isBitfieldRun() const { return true; }
 
-SmallVector<Decl *, 64> Randstruct::randomize(SmallVector<Decl *, 64> fields) {
+SmallVector<Decl *, 64> randomize(SmallVector<Decl *, 64> fields) {
   std::seed_seq Seq(RandstructSeed.begin(), RandstructSeed.end());
   auto rng = std::default_random_engine{Seq};
   std::shuffle(std::begin(fields), std::end(fields), rng);
   return fields;
 }
 
-Randstruct::Randstruct(std::String Seed) { RandstructSeed = Seed; }
-
-SmallVector<Decl *, 64> Randstruct::perfrandomize(const ASTContext &ctx,
+SmallVector<Decl *, 64> perfrandomize(const ASTContext &ctx,
                                       SmallVector<Decl *, 64> fields) {
   // All of the buckets produced by best-effort cache-line algorithm.
   std::vector<std::unique_ptr<Bucket>> buckets;