packages/react-reconciler/src/ReactFiberHooks.old.js
packages/react/src/ReactStartTransition.js

packages/react-reconciler/src/ReactFiberHooks.new.js
packages/react/src/ReactStartTransition.js

packages/react-reconciler/src/ReactFiber.new.js
packages/react/src/jsx/ReactJSXElementValidator.js

packages/react-reconciler/src/ReactFiber.old.js
packages/react/src/ReactElementValidator.js

packages/react-reconciler/src/ReactFiber.new.js
packages/react/src/ReactElementValidator.js

packages/react-reconciler/src/ReactFiber.old.js
packages/react/src/jsx/ReactJSXElementValidator.js

packages/react-reconciler/src/ReactFiberHooks.new.js
packages/react/src/ReactHooks.js

packages/react-reconciler/src/ReactFiberHooks.old.js
packages/react/src/ReactHooks.js