[llvm] Stop including llvm/ADT/SmallSet.h (NFC)

Identified with clangd.

llvm/include/llvm/ADT/IntervalTree.h

@@ -16,7 +16,6 @@
 #ifndef LLVM_ADT_INTERVALTREE_H
 #define LLVM_ADT_INTERVALTREE_H
 
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/Format.h"

llvm/include/llvm/Analysis/ValueTracking.h

@@ -15,7 +15,6 @@
 #define LLVM_ANALYSIS_VALUETRACKING_H
 
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/Analysis/SimplifyQuery.h"
 #include "llvm/Analysis/WithCache.h"
 #include "llvm/IR/Constants.h"

llvm/lib/CodeGen/AssignmentTrackingAnalysis.cpp

@@ -5,7 +5,6 @@
 #include "llvm/ADT/IntervalMap.h"
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/UniqueVector.h"
 #include "llvm/Analysis/Interval.h"

llvm/lib/IR/DebugInfoMetadata.cpp

@@ -14,7 +14,6 @@
 #include "LLVMContextImpl.h"
 #include "MetadataImpl.h"
 #include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/BinaryFormat/Dwarf.h"
 #include "llvm/IR/Function.h"

llvm/lib/Target/AMDGPU/AMDGPURewriteOutArguments.cpp

@@ -43,7 +43,6 @@
 
 #include "AMDGPU.h"
 #include "Utils/AMDGPUBaseInfo.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/MemoryDependenceAnalysis.h"
 #include "llvm/IR/AttributeMask.h"

llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp

@@ -60,7 +60,6 @@
 #include "Thumb2InstrInfo.h"
 #include "llvm/ADT/SetOperations.h"
 #include "llvm/ADT/SetVector.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/CodeGen/LivePhysRegs.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"

llvm/lib/Target/ARM/MVEVPTBlockPass.cpp

@@ -11,7 +11,6 @@
 #include "ARMSubtarget.h"
 #include "MCTargetDesc/ARMBaseInfo.h"
 #include "Thumb2InstrInfo.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/StringRef.h"

llvm/lib/Target/Lanai/LanaiMemAluCombiner.cpp

@@ -24,7 +24,6 @@
 
 #include "LanaiAluCode.h"
 #include "LanaiTargetMachine.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"

llvm/lib/Target/PowerPC/PPCMergeStringPool.cpp

@@ -15,7 +15,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "PPC.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/DomTreeUpdater.h"
 #include "llvm/Analysis/LoopInfo.h"

llvm/lib/Target/X86/X86FlagsCopyLowering.cpp

@@ -29,7 +29,6 @@
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/ScopeExit.h"
 #include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/SparseBitVector.h"
 #include "llvm/ADT/Statistic.h"

llvm/lib/Target/X86/X86FrameLowering.cpp

@@ -17,7 +17,6 @@
 #include "X86MachineFunctionInfo.h"
 #include "X86Subtarget.h"
 #include "X86TargetMachine.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/CodeGen/LivePhysRegs.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"

llvm/tools/llvm-objdump/llvm-objdump.cpp

@@ -27,7 +27,6 @@
 #include "llvm/ADT/IndexedMap.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SetOperations.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/StringSet.h"
 #include "llvm/ADT/Twine.h"

llvm/tools/llvm-reduce/deltas/ReduceDIMetadata.cpp

@@ -15,7 +15,6 @@
 #include "Delta.h"
 #include "llvm/ADT/Sequence.h"
 #include "llvm/ADT/SetVector.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/InstIterator.h"

llvm/tools/llvm-remarkutil/RemarkCounter.h

@@ -13,7 +13,6 @@
 #define TOOLS_LLVM_REMARKCOUNTER_H
 #include "RemarkUtilHelpers.h"
 #include "llvm/ADT/MapVector.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/Support/Regex.h"
 #include <list>
 

llvm/utils/TableGen/InfoByHwMode.h

@@ -15,7 +15,6 @@
 #define LLVM_UTILS_TABLEGEN_INFOBYHWMODE_H
 
 #include "CodeGenHwModes.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/CodeGen/MachineValueType.h"