Trim an unneeded header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137184 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/FunctionLoweringInfo.h

@@ -19,6 +19,7 @@
 #include "llvm/Instructions.h"
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/IndexedMap.h"
 #include "llvm/ADT/SmallVector.h"
 #ifndef NDEBUG

include/llvm/Target/TargetRegisterInfo.h

@@ -20,7 +20,6 @@
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/ValueTypes.h"
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/DenseSet.h"
 #include <cassert>
 #include <functional>
 

lib/CodeGen/StrongPHIElimination.cpp

@@ -47,6 +47,7 @@
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Support/Debug.h"
 using namespace llvm;

lib/CodeGen/TailDuplication.cpp

@@ -25,6 +25,7 @@
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SetVector.h"
 #include "llvm/ADT/Statistic.h"