vector instead of YGNodeList

Summary: Replaced YGNodeList with std::vector

Reviewed By: jonathandann, emilsjolander

Differential Revision: D6442379

fbshipit-source-id: d2d48ef0676351d2eeaa2d427dcd72e082cd15a1

yoga/Yoga-internal.h

@@ -8,9 +8,12 @@
  */
 
 #pragma once
-#include "YGNodeList.h"
+#include <vector>
+
 #include "Yoga.h"
 
+using YGVector = std::vector<YGNodeRef>;
+
 YG_EXTERN_C_BEGIN
 
 WIN_EXPORT float YGRoundValueToPixelGrid(const float value,
@@ -101,7 +104,7 @@ typedef struct YGNode {
   uint32_t lineIndex;
 
   YGNodeRef parent;
-  YGNodeListRef children;
+  YGVector children;
 
   struct YGNode* nextChild;
 
@@ -205,7 +208,7 @@ static const YGNode gYGNodeDefaults = {
     .layout = gYGNodeLayoutDefaults,
     .lineIndex = 0,
     .parent = nullptr,
-    .children = nullptr,
+    .children = YGVector(),
     .nextChild = nullptr,
     .measure = nullptr,
     .baseline = nullptr,