String identifiers yield compilation errors when converted withDottyCompat

[magnusart]

I have gotten an unexpected compilation error when setting up a template project to try out dotty and following the Akka documentation at http://doc.akka.io/docs/akka-http/current/scala/http/introduction.html#using-akka-http

I set up the dependencies described and added withDottyCompat to my library dependencies in my build.sbt and also made sure to define crossScalaVersions as per the Dotty example project.

I then get an compilation error for the following line of code:

complete(HttpEntity(ContentTypes.`text/html(UTF-8)`, "<h1>Say hello to akka-http</h1>"))

The error I get is

[error] -- [E008] Member Not Found Error: /Users/ ... /TestService.scala:27:43
[error] 27 |          complete(HttpEntity(ContentTypes.`text/html(UTF-8)`, "<h1>Say hello to akka-http</h1>"))
[error]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[error]    |value `text$u002Fhtml(UTF-8)` is not a member of akka.http.scaladsl.model.ContentTypes

If I change the signature (via content assist) to

complete(HttpEntity(ContentTypes.text$divhtml$u0028UTF$minus8$u0029, "<h1>Say hello to akka-http</h1>"))

Dotty can now compile the project just fine.