Follow-up on initial TS4 catch param support (#11767)

* refactor: align with AST shape convention

* feat: print catch param type annotations

* test: add test case on transform

packages/babel-parser/src/plugins/typescript/index.js

@@ -2666,7 +2666,7 @@ export default (superClass: Class<Parser>): Class<Parser> =>
       const type = this.tsTryParseTypeAnnotation();
 
       if (type) {
-        param.type = type;
+        param.typeAnnotation = type;
       }
 
       return param;