[llvm] Remove includes of `llvm/Support/STLArrayExtras.h`

[jloser]

Summary

llvm and downstream internal callers no longer use llvm::array_lengthof, so
drop the include everywhere.

[jloser]

Rebase now that https://reviews.llvm.org/D133598 has landed

[MaskRay]

Looks great!

llvm/include/llvm/ADT/STLExtras.h

 ///
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_ADT_STLEXTRAS_H
 #define LLVM_ADT_STLEXTRAS_H
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/Optional.h"
-#include "llvm/ADT/STLArrayExtras.h"
 #include "llvm/ADT/STLForwardCompat.h"
 #include "llvm/ADT/STLFunctionalExtras.h"
 #include "llvm/ADT/identity.h"
 #include "llvm/ADT/iterator.h"
 #include "llvm/ADT/iterator_range.h"
 #include "llvm/Config/abi-breaking.h"
 #include "llvm/Support/ErrorHandling.h"
 #include <algorithm>

llvm/include/llvm/CodeGen/TargetLowering.h

 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_CODEGEN_TARGETLOWERING_H
 #define LLVM_CODEGEN_TARGETLOWERING_H
 
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/STLArrayExtras.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/CodeGen/DAGCombine.h"
 #include "llvm/CodeGen/ISDOpcodes.h"
 #include "llvm/CodeGen/LowLevelType.h"
 #include "llvm/CodeGen/RuntimeLibcalls.h"
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/CodeGen/SelectionDAGNodes.h"

llvm/lib/MC/MCAsmBackend.cpp

 //===- MCAsmBackend.cpp - Target MC Assembly Backend ----------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCAsmBackend.h"
 #include "llvm/ADT/None.h"
-#include "llvm/ADT/STLArrayExtras.h"
 #include "llvm/MC/MCDXContainerWriter.h"
 #include "llvm/MC/MCELFObjectWriter.h"
 #include "llvm/MC/MCFixupKindInfo.h"
 #include "llvm/MC/MCMachObjectWriter.h"
 #include "llvm/MC/MCObjectWriter.h"
 #include "llvm/MC/MCSPIRVObjectWriter.h"
 #include "llvm/MC/MCWasmObjectWriter.h"
 #include "llvm/MC/MCWinCOFFObjectWriter.h"

llvm/lib/Support/ARMAttributeParser.cpp

 //===- ARMAttributeParser.cpp - ARM Attribute Information Printer ---------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/ARMAttributeParser.h"
-#include "llvm/ADT/STLArrayExtras.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/Support/ARMBuildAttributes.h"
 #include "llvm/Support/Errc.h"
 #include "llvm/Support/ScopedPrinter.h"
 
 using namespace llvm;
 using namespace llvm::ARMBuildAttrs;
 

llvm/lib/Support/Triple.cpp

 //===--- Triple.cpp - Target triple helper class --------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/Triple.h"
-#include "llvm/ADT/STLArrayExtras.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/Support/ARMTargetParser.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Support/SwapByteOrder.h"
 #include "llvm/Support/VersionTuple.h"
StringRef Triple::getArchTypePrefix(ArchType Kind) {
   case riscv32:
   case riscv64:     return "riscv";
 
   case ve:          return "ve";
   case csky:        return "csky";
 
   case loongarch32:
   case loongarch64: return "loongarch";
-  
   case dxil:        return "dx";
   }
 }
 
 StringRef Triple::getVendorTypeName(VendorType Kind) {
   switch (Kind) {
   case UnknownVendor: return "unknown";
 

llvm/lib/Support/raw_ostream.cpp

 //===--- raw_ostream.cpp - Implement the raw_ostream classes --------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 // This implements support for bulk buffered stream output.
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/ADT/STLArrayExtras.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/Config/config.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/Duration.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/FormatVariadic.h"

llvm/utils/TableGen/X86DisassemblerTables.cpp

 // Documentation for the disassembler emitter in general can be found in
 //  X86DisassemblerEmitter.h.
 //
 //===----------------------------------------------------------------------===//
 
 #include "X86DisassemblerTables.h"
 #include "X86DisassemblerShared.h"
 #include "X86ModRMFilters.h"
-#include "llvm/ADT/STLArrayExtras.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
 #include <map>
 
 using namespace llvm;
 using namespace X86Disassembler;