calc ScTable::ReplaceAll : avoid calling GetLastDataPos uselessly

Change-Id: Ibb6fb9ea3e524a889de96f560e308a4aa54fa2af
Reviewed-on: https://gerrit.libreoffice.org/12248Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>

sc/source/core/data/table6.cxx

@@ -496,10 +496,14 @@ bool ScTable::ReplaceAll(
     SCCOL nCol = 0;
     SCROW nRow = -1;
 
+    SCCOL nLastCol;
+    SCROW nLastRow;
+    GetLastDataPos(nLastCol, nLastRow);
+
     bool bEverFound = false;
     while (true)
     {
-        bool bFound = Search(rSearchItem, nCol, nRow, rMark, rUndoStr, pUndoDoc);
+        bool bFound = Search(rSearchItem, nCol, nRow, nLastCol, nLastRow, rMark, rUndoStr, pUndoDoc);
 
         if (bFound)
         {