// The pointer to the owner string should be immediately following after the StringImpl layout,
// since we would like to align the layout of SymbolImpl to the one of BufferSubstring StringImpl.
StringImpl* m_owner;
// The pointer to the owner string should be immediately following after the StringImpl layout,
// since we would like to align the layout of SymbolImpl to the one of BufferSubstring StringImpl.
StringImpl* m_owner;