Forward declare DumpValueObjectOptions in ValueObject.h

[teemperor]

Summary

This resolves unnecessary the header dependency from Core to DataFormatters. Patch is necessary for the introduction of C++ modules to the LLDB build system.

include/lldb/Core/ValueObject.h

 //===-- ValueObject.h -------------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef liblldb_ValueObject_h_
 #define liblldb_ValueObject_h_
 
 #include "lldb/Core/Value.h"
-#include "lldb/DataFormatters/DumpValueObjectOptions.h" // for DumpValueObj...
 #include "lldb/Symbol/CompilerType.h"
 #include "lldb/Symbol/Type.h" // for TypeImpl
 #include "lldb/Target/ExecutionContext.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Utility/ConstString.h"
 #include "lldb/Utility/DataExtractor.h"
 #include "lldb/Utility/SharedCluster.h"
 #include "lldb/Utility/Status.h"

 #include <utility> // for pair
 
 #include <stddef.h> // for size_t
 #include <stdint.h> // for uint32_t
 namespace lldb_private {
 class Declaration;
 }
 namespace lldb_private {
+class DumpValueObjectOptions;
+}
+namespace lldb_private {
 class EvaluateExpressionOptions;
 }
 namespace lldb_private {
 class ExecutionContextScope;
 }
 namespace lldb_private {
 class Log;
 }

source/Core/ValueObject.cpp

 #include "lldb/Core/Scalar.h" // for Scalar
 #include "lldb/Core/ValueObjectCast.h"
 #include "lldb/Core/ValueObjectChild.h"
 #include "lldb/Core/ValueObjectConstResult.h"
 #include "lldb/Core/ValueObjectDynamicValue.h"
 #include "lldb/Core/ValueObjectMemory.h"
 #include "lldb/Core/ValueObjectSyntheticFilter.h"
 #include "lldb/DataFormatters/DataVisualization.h"
+#include "lldb/DataFormatters/DumpValueObjectOptions.h" // for DumpValueObj...
 #include "lldb/DataFormatters/FormatManager.h" // for FormatManager
 #include "lldb/DataFormatters/StringPrinter.h"
 #include "lldb/DataFormatters/TypeFormat.h"    // for TypeFormatImpl_F...
 #include "lldb/DataFormatters/TypeSummary.h"   // for TypeSummaryOptions
 #include "lldb/DataFormatters/TypeValidator.h" // for TypeValidatorImp...
 #include "lldb/DataFormatters/ValueObjectPrinter.h"
 #include "lldb/Expression/ExpressionVariable.h" // for ExpressionVariable
 #include "lldb/Symbol/ClangASTContext.h"