Move the invariant group handler into its own method.

Change-Id: I3ed8da3c9673b990d5ae17d235bcf4fc1a4541f1

sc/inc/formulacell.hxx

@@ -303,6 +303,7 @@ public:
     CompareState CompareByTokenArray( ScFormulaCell *pOther ) const;
 
     bool InterpretFormulaGroup();
+    bool InterpretInvariantFormulaGroup();
 
     // nOnlyNames may be one or more of SC_LISTENING_NAMES_*
     void StartListeningTo( ScDocument* pDoc );

sc/source/core/data/formulacell.cxx

@@ -2965,7 +2965,40 @@ bool ScFormulaCell::InterpretFormulaGroup()
     }
 
     if (xGroup->mbInvariant)
-    {
+        return InterpretInvariantFormulaGroup();
+
+    // scan the formula ...
+    // have a document method: "Get2DRangeAsDoublesArray" that does the
+    // column-based heavy lifting call it for each absolute range from the
+    // first cell pos in the formula group.
+    //
+    // Project single references to ranges by adding their vector * xGroup->mnLength
+    //
+    // TODO:
+    //    elide multiple dimensional movement in vectors eg. =SUM(A1<1,1>)
+    //    produces a diagonal 'column' that serves no useful purpose for us.
+    //    these should be very rare. Should elide in GetDeltas anyway and
+    //    assert here.
+    //
+    // Having built our input data ...
+    // Throw it, and the formula over to some 'OpenCLCalculage' hook
+    //
+    // on return - release references on these double buffers
+    //
+    // transfer the result to the formula cells (as above)
+    // store the doubles in the columns' maDoubles array for
+    // dependent formulae
+    //
+    // TODO:
+    //    need to abort/fail when we get errors returned and fallback to
+    //    stock interpreting [ I guess ], unless we can use NaN etc. to
+    //    signal errors.
+
+    return false;
+}
+
+bool ScFormulaCell::InterpretInvariantFormulaGroup()
+{
     if (pCode->GetVectorState() == FormulaVectorCheckReference)
     {
         // An invariant group should only have absolute references, and no
@@ -3039,37 +3072,8 @@ bool ScFormulaCell::InterpretFormulaGroup()
 
         // FIXME: there is a view / refresh missing here it appears.
     }
-        return true;
-    }
-
-    // scan the formula ...
-    // have a document method: "Get2DRangeAsDoublesArray" that does the
-    // column-based heavy lifting call it for each absolute range from the
-    // first cell pos in the formula group.
-    //
-    // Project single references to ranges by adding their vector * xGroup->mnLength
-    //
-    // TODO:
-    //    elide multiple dimensional movement in vectors eg. =SUM(A1<1,1>)
-    //    produces a diagonal 'column' that serves no useful purpose for us.
-    //    these should be very rare. Should elide in GetDeltas anyway and
-    //    assert here.
-    //
-    // Having built our input data ...
-    // Throw it, and the formula over to some 'OpenCLCalculage' hook
-    //
-    // on return - release references on these double buffers
-    //
-    // transfer the result to the formula cells (as above)
-    // store the doubles in the columns' maDoubles array for
-    // dependent formulae
-    //
-    // TODO:
-    //    need to abort/fail when we get errors returned and fallback to
-    //    stock interpreting [ I guess ], unless we can use NaN etc. to
-    //    signal errors.
 
-    return false;
+    return true;
 }
 
 void ScFormulaCell::StartListeningTo( ScDocument* pDoc )