Portion can use sal_Int32 for its key

which makes it a little more cache-dense on 64-bit platforms

Change-Id: I6a7d22d94a04baac623a23d4766d4d8b7bbbb570
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/151325
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/sw/source/core/txtnode/thints.cxx b/sw/source/core/txtnode/thints.cxx
index 5b5a8aa..75e80ab 100644
--- a/sw/source/core/txtnode/thints.cxx
+++ b/sw/source/core/txtnode/thints.cxx
@@ -2699,7 +2699,7 @@ void SwpHints::NoteInHistory( SwTextAttr *pAttr, const bool bNew )
namespace {
struct Portion {
    SwTextAttr* pTextAttr;
    int nKey;
    sal_Int32 nKey;
    bool isRsidOnlyAutoFormat;
};
typedef std::vector< Portion > PortionMap;