Expect_test_helpers_core is a library intended for use with expect tests, i.e. the
let%expect_test syntax. It is an extension of the
Expect_test_helpers_base library with functionality dependent on
Core, in particular stable types and allocation tests that use the
Expect_test_helpers_core does not use
Expect_test_helpers_async library, which provides test helpers that work in Async and with additional helper functions that make use of Unix processes.