NegativeFlexibility  683 Source/core/rendering/RenderFlexibleBox.cpp         FlexSign flexSign = (sumHypotheticalMainSize < containerMainInnerSize) ? PositiveFlexibility : NegativeFlexibility;
NegativeFlexibility  956 Source/core/rendering/RenderFlexibleBox.cpp             else if (availableFreeSpace < 0 && totalWeightedFlexShrink > 0 && flexSign == NegativeFlexibility && std::isfinite(totalWeightedFlexShrink))