Preserve triple slash directives

Author: eps1lon

packages/next/types.d.ts

@@ -1,2 +1,9 @@
+// Triple slash directives are copied from src/types.ts.
+// TypeScript currently does not preserve the tripple-slash directives.
+// Once https://github.com/microsoft/TypeScript/pull/57681 is released, we can remove the triple slash directives here.
+/// <reference types="react" />
+/// <reference types="react/experimental" />
+/// <reference types="react-dom" />
+/// <reference types="react-dom/experimental" />
 export * from './dist/types'
 export { default } from './dist/types'