julia

fa9c1370 - Test that internal constructor return type asserts are respected (#47227)

Test that internal constructor return type asserts are respected (#47227) On Julia 1.8, if the internal constructor's return value was typeasserted, this assertion could be violated without an error. For example, in this case: ```julia struct Foo x::Int Foo()::Nothing = new(1) end ``` Running `Foo()` would not throw. This was inadvertently fixed in a later PR, but not tested. This PR adds a test case similar to the example above.