Fix measure inner dimensions (#1114)

Summary:
`YGFloatIsUndefined(collectedFlexItemsValues.totalFlexGrowFactors) &&            collectedFlexItemsValues.totalFlexGrowFactors == 0`  is not reachable.

X-link: facebook/yoga#1114

Reviewed By: NickGerleman

Differential Revision: D40203817

Pulled By: NickGerleman

fbshipit-source-id: 46a8c19dc0e097f4c28e7f48135f0382a557764a

ReactCommon/yoga/yoga/Yoga.cpp

@@ -2952,10 +2952,10 @@ static void YGNodelayoutImpl(
         availableInnerMainDim = maxInnerMainDim;
       } else {
         if (!node->getConfig()->useLegacyStretchBehaviour &&
-            ((YGFloatIsUndefined(
+            ((!YGFloatIsUndefined(
                   collectedFlexItemsValues.totalFlexGrowFactors) &&
               collectedFlexItemsValues.totalFlexGrowFactors == 0) ||
-             (YGFloatIsUndefined(node->resolveFlexGrow()) &&
+             (!YGFloatIsUndefined(node->resolveFlexGrow()) &&
               node->resolveFlexGrow() == 0))) {
           // If we don't have any children to flex or we can't flex the node
           // itself, space we've used is all space we need. Root node also