import * as eslintScope from 'eslint-scope';
import * as espree from 'espree';

const code = "try {} catch({ message }) {}";

const ast = espree.parse(code, { range: true, ecmaVersion: 2015 });
const scopeManager = eslintScope.analyze(ast, { ecmaVersion: 2015 });

const catchScope = scopeManager.scopes[2];
const variable = catchScope.variables[0];

console.log(variable.name); // "message"

console.log(variable.defs[0].name.type); // "ObjectPattern" !