Cleanup LLVMObject headers

Most notably,

llvm/Object/Binary.h no longer includes llvm/Support/MemoryBuffer.h
llvm/Object/MachOUniversal*.h no longer include llvm/Object/Archive.h
llvm/Object/TapiUniversal.h no longer includes llvm/Object/TapiFile.h

llvm-project preprocessed size:
before: 1068185081
after:  1068324320

Discourse thread: https://discourse.llvm.org/t/include-what-you-use-include-cleanup
Differential Revision: https://reviews.llvm.org/D119457

1 files changed, 8 insertions, 7 deletions

diff --git a/llvm/lib/Object/IRObjectFile.cpp b/llvm/lib/Object/IRObjectFile.cpp
index 1aa7fee..93e2860 100644
--- a/llvm/lib/Object/IRObjectFile.cpp
+++ b/llvm/lib/Object/IRObjectFile.cpp
@@ -11,20 +11,21 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Object/IRObjectFile.h"
-#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/DenseMapInfo.h"
+#include "llvm/ADT/PointerUnion.h"
 #include "llvm/BinaryFormat/Magic.h"
 #include "llvm/Bitcode/BitcodeReader.h"
-#include "llvm/IR/GVMaterializer.h"
-#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/Mangler.h"
 #include "llvm/IR/Module.h"
-#include "llvm/MC/TargetRegistry.h"
 #include "llvm/Object/ObjectFile.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 using namespace object;
 
+namespace llvm {
+class LLVMContext;
+class raw_ostream;
+} // namespace llvm
+
 IRObjectFile::IRObjectFile(MemoryBufferRef Object,
                            std::vector<std::unique_ptr<Module>> Mods)
     : SymbolicFile(Binary::ID_IR, Object), Mods(std::move(Mods)) {