After #6874, I have the following problem:

module FormattedMessage = { @react.component @module("react-intl") external make: (~id: string, ~defaultMessage: string) => React.element = "FormattedMessage" } let _ = <FormattedMessage id="test" defaultMessage="Test" />

compiles to

JsxRuntime.jsx((function (prim) { return ReactIntl.FormattedMessage; }), { id: "test", defaultMessage: "Test" });

(which fails at runtime) instead of

JsxRuntime.jsx(ReactIntl.FormattedMessage, { id: "test", defaultMessage: "Test" });

I think the root cause is that React.component is not defined as an abstract type, but as 'props => React.element. @mununki tried to make it abstract in #6304, but hit a roadblock.

Although I am also asking myself why the compiler needs to introduce that extra function now that it knows that the external is a function of arity 1.