do not silently ignore a token API error, fdo#51926 related

Change-Id: Ie187dad84bd55bb76c795b5c4807566e80349b56

formula/source/core/api/token.cxx

@@ -328,7 +328,12 @@ bool FormulaTokenArray::Fill(const uno::Sequence< sheet::FormulaToken >& _aSeque
     const sal_Int32 nCount = _aSequence.getLength();
     for (sal_Int32 nPos=0; nPos<nCount; nPos++)
     {
-        bError |= AddFormulaToken( _aSequence[nPos] ,_pRef);
+        bool bOneError = AddFormulaToken( _aSequence[nPos] ,_pRef);
+        if (bOneError)
+        {
+            AddOpCode( ocErrName);  // add something that indicates an error
+            bError = true;
+        }
     }
     return bError;
 }

sc/source/core/tool/token.cxx

@@ -1162,6 +1162,8 @@ bool ScTokenArray::AddFormulaToken(const com::sun::star::sheet::FormulaToken& _a
                             AddRangeName(aTokenData.Index, aTokenData.Global);
                         else if (eOpCode == ocDBArea)
                             AddDBRange(aTokenData.Index);
+                        else
+                            bError = true;
                     }
                     else if ( aType.equals( cppu::UnoType<sheet::ExternalReference>::get() ) )
                     {