[JSC] UnlinkedCodeBlock::m_instructions can be nullptr
Created attachment 440657 [details] Patch
<rdar://problem/83975933>
Comment on attachment 440657 [details] Patch r=me
Committed r283841 (242721@main): <https://commits.webkit.org/242721@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 440657 [details].