Summary:
Even so the problem of #236 has been fixed via ced779b there is still a case where you have a out of bound array access of undefined behaviour. This PR prevents the out of bound access of the underlying c array. The out of bound access happens if you already have 4 subViews and add another one. Then you will access CSSNodeGetChild with 4 which points into uninitialized memory.
Closes https://github.com/facebook/css-layout/pull/237
Reviewed By: dshahidehpour
Differential Revision: D4107743
Pulled By: emilsjolander
fbshipit-source-id: 0f21397f3a77308369acfea7327733f74eb72e00
af5e6771d7