Function isInDoc

tools/eslint-rules/documented-deprecation-codes.js:12–14

(code)

const doc = fs.readFileSync(path.resolve(__dirname, '../..', mdFile), 'utf8');

function isInDoc(code) {
  return doc.includes(`### ${code}:`);
}

function getDeprecationCode(node) {
  return node.expression.arguments[2].value;