Remove some clang references from API.

[brucem]

Summary

Remove an unused include and 'using namespace clang' declarations.

Also, rename a CompilerType variable to not have 'clang' in the name.

[brucem]

Abandoning this one as I'd rather do a lot more of the clang inclusion reduction separately.

source/API/SBType.cpp

 #include "lldb/Core/ConstString.h"
 #include "lldb/Core/Log.h"
 #include "lldb/Core/Stream.h"
 #include "lldb/Symbol/CompilerType.h"
 #include "lldb/Symbol/Type.h"
 #include "lldb/Symbol/TypeSystem.h"
 
 #include "llvm/ADT/APSInt.h"
-#include "clang/AST/Decl.h"
 
 using namespace lldb;
 using namespace lldb_private;
-using namespace clang;
 
 SBType::SBType() :
     m_opaque_sp()
 {
 }
 
 SBType::SBType (const CompilerType &type) :
     m_opaque_sp(new TypeImpl(CompilerType(type.GetTypeSystem(),
SBType::IsTypedefType ()
     return m_opaque_sp->GetCompilerType(true).IsTypedefType();
 }
 
 lldb::SBType
 SBType::GetFunctionReturnType ()
 {
     if (IsValid())
     {
-        CompilerType return_clang_type (m_opaque_sp->GetCompilerType(true).GetFunctionReturnType());
-        if (return_clang_type.IsValid())
-            return SBType(return_clang_type);
+        CompilerType return_type (m_opaque_sp->GetCompilerType(true).GetFunctionReturnType());
+        if (return_type.IsValid())
+            return SBType(return_type);
     }
     return lldb::SBType();
 }
 
 lldb::SBTypeList
 SBType::GetFunctionArgumentTypes ()
 {
     SBTypeList sb_type_list;

source/API/SBTypeEnumMember.cpp

 #include "lldb/API/SBTypeEnumMember.h"
 #include "lldb/API/SBStream.h"
 #include "lldb/Core/Stream.h"
 #include "lldb/Symbol/CompilerType.h"
 #include "lldb/Symbol/Type.h"
 
 using namespace lldb;
 using namespace lldb_private;
-using namespace clang;
 
 SBTypeEnumMember::SBTypeEnumMember() :
     m_opaque_sp()
 {
 }
 
 SBTypeEnumMember::~SBTypeEnumMember()
 {