[ProfileData] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

llvm-svn: 296846

llvm/lib/ProfileData/SampleProfReader.cpp

@@ -23,14 +23,25 @@
 #include "llvm/ProfileData/SampleProfReader.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/STLExtras.h"
-#include "llvm/Support/Debug.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/IR/ProfileSummary.h"
+#include "llvm/ProfileData/ProfileCommon.h"
+#include "llvm/ProfileData/SampleProf.h"
 #include "llvm/Support/ErrorOr.h"
 #include "llvm/Support/LEB128.h"
 #include "llvm/Support/LineIterator.h"
 #include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+#include <cstddef>
+#include <cstdint>
+#include <limits>
+#include <memory>
+#include <system_error>
+#include <vector>
 
-using namespace llvm::sampleprof;
 using namespace llvm;
+using namespace sampleprof;
 
 /// \brief Dump the function profile for \p FName.
 ///