Suggestion

packages/type-utils provides a suite of types/TypeScript-related functions. They're used in many rules. But because we don't merge coverage reports across packages (#6701), it shows up as having surprisingly low unit test coverage. E.g. builtinSymbolLikes.ts on 1d7447f right now has 0%. https://app.codecov.io/gh/typescript-eslint/typescript-eslint/blob/1d7447f4fd5e2fbae4211eb5fc07e93cf570b6b3/packages%2Ftype-utils%2Fsrc%2FbuiltinSymbolLikes.ts