RFC: Consult new JSX.ElementType for valid JSX element types by eps1lon · Pull Request #51328 · microsoft/TypeScript

Closes #21699 Closes #14729 Enables closing DefinitelyTyped/DefinitelyTyped#18051 and DefinitelyTyped/DefinitelyTyped#18912 Quick terminology intro: <Component /> // ^^^^^^^^^ JSX element t...