in src/rule-generated-flow-types.js [272:282]
function resolveTypeAlias(genericType, typeAliasMap) {
let currentType = genericType;
while (
currentType != null &&
currentType.type === 'GenericTypeAnnotation' &&
typeAliasMap[currentType.id.name] != null
) {
currentType = typeAliasMap[currentType.id.name];
}
return currentType;
}