in packages/fb-babel-plugin-utils/TestUtil.js [49:64]
function stripMeta(node, options) {
let ignoreKeys;
if (options && options.comments) {
// keep comments
ignoreKeys = [...IGNORE_KEYS];
} else {
ignoreKeys = [...IGNORE_KEYS, 'leadingComments', 'trailingComments'];
}
ignoreKeys.forEach(key => delete node[key]);
for (const p in node) {
if (node[p] && typeof node[p] === 'object') {
stripMeta(node[p], options);
}
}
return node;
}