Parser.h/cpp - cleanup includes and forward declaration. NFC.

Parser.h - Reduce MemoryBuffer.h include to just the necessary StringRef.h include and MemoryBufferRef forward declaration
Parser.cpp - Remove unused raw_ostream.h include

Author: RKSimon

llvm/include/llvm/AsmParser/Parser.h

@@ -13,12 +13,14 @@
 #ifndef LLVM_ASMPARSER_PARSER_H
 #define LLVM_ASMPARSER_PARSER_H
 
-#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/ADT/StringRef.h"
+#include <memory>
 
 namespace llvm {
 
 class Constant;
 class LLVMContext;
+class MemoryBufferRef;
 class Module;
 class ModuleSummaryIndex;
 struct SlotMapping;

llvm/lib/AsmParser/Parser.cpp

@@ -17,9 +17,9 @@
 #include "llvm/IR/ModuleSummaryIndex.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/SourceMgr.h"
-#include "llvm/Support/raw_ostream.h"
 #include <cstring>
 #include <system_error>
+
 using namespace llvm;
 
 bool llvm::parseAssemblyInto(MemoryBufferRef F, Module *M,