This patch does a few things:

- adds a new flag to mark ValueObjects as "synthetic children generated"
- vends new Create functions as part of the SyntheticChildrenFrontEnd that set the flag automatically
- moves synthetic child providers over to using these new functions

No visible feature change, but preparatory work for feature change

llvm-svn: 223819

lldb/source/DataFormatters/LibCxxList.cpp

@@ -308,7 +308,7 @@ lldb_private::formatters::LibcxxStdListSyntheticFrontEnd::GetChildAtIndex (size_
     
     StreamString name;
     name.Printf("[%" PRIu64 "]", (uint64_t)idx);
-    return (m_children[idx] = ValueObject::CreateValueObjectFromData(name.GetData(), data, m_backend.GetExecutionContextRef(), m_element_type));
+    return (m_children[idx] = CreateValueObjectFromData(name.GetData(), data, m_backend.GetExecutionContextRef(), m_element_type));
 }
 
 bool