[analyzer] Report of `#const_with_type_parameters` with raw type but not alias, and compiler still works about sdk

[lrhn]

Seems like an analyzer bug. There is nothing wrong with the type argument to Wrapper, it's a valid constant type term. (If the spec somehow states that it's not a valid constant type, the bug is also in the spec.)

[srawlins]

The ability to "use a generic function type as a type argument" was introduced in Dart 2.14. If you prepend your example with // @dart=2.13, the VM also gives errors:

a.dart:7:16: Error: A generic function type can't be used as a type argument.
Try using a non-generic function type.
const token1 = Wrapper<TD>();
               ^
a.dart:8:16: Error: A generic function type can't be used as a type argument.
Try using a non-generic function type.
const token2 = Wrapper<A Function<A>(A)>();
               ^

I'm not sure how related that is... but it seems maybe we didn't finsh implementing that feature. I thought this issue might be related to the constructor tearoffs feature, introduced in 2.15, in which type variables became potentially constant:

If T denotes a type variable then T is a potentially constant type expression, and a potentially constant expression.

But the VM accepts the program with // @dart=2.14 (pre-constructor-tearoffs), so 🤷 .