[apps/poincare] Use symbolicComputation in recursivelyMatches

This fixes a failed assertion for the scenario:
[3]->x then, in the Equation app, solve x+1->0

apps/calculation/calculation.cpp

@@ -176,7 +176,7 @@ Calculation::DisplayOutput Calculation::displayOutput(Context * context) {
             ExpressionNode::Type::PredictionInterval
           };
           return e.isOfType(approximateOnlyTypes, sizeof(approximateOnlyTypes)/sizeof(ExpressionNode::Type));
-        }, context, true)
+        }, context)
   )
   {
     m_displayOutput = DisplayOutput::ApproximateOnly;