Migrate Babel from Flow to TypeScript (except Babel parser) (#11578)

Co-authored-by: Nicolò Ribaudo <nicolo.ribaudo@gmail.com>

packages/babel-plugin-proposal-logical-assignment-operators/src/index.ts

@@ -34,6 +34,7 @@ export default declare(api => {
               lhs.property = t.assignmentExpression(
                 "=",
                 t.cloneNode(memo),
+                // @ts-expect-error todo(flow->ts): property can be t.PrivateName
                 property,
               );
             }