Compile-time shapeless in runtime-compiler

[hubertp]

Pull Request Description

Marking the shapeless dependency as compile-time only.

Important Notes

If we want to ditch the dependency completely then, if we want to keep the check in place, we would have to replace with its runtime equivalent:

--- a/engine/runtime-compiler/src/main/scala/org/enso/compiler/pass/IRPass.scala
+++ b/engine/runtime-compiler/src/main/scala/org/enso/compiler/pass/IRPass.scala
@@ -148,6 +148,9 @@ object IRPass {
     def unsafeAs[T <: Metadata: ClassTag]: T = {
+      if (implicitly[ClassTag[T]].runtimeClass == Metadata.getClass) {
+        throw new InternalError("Type argument must be specified")
+      }

Not sure if we want to do it still after this change.

Note that project-manager uses that and some other definitions as well.

Checklist

Please ensure that the following checklist has been satisfied before submitting the PR:

• All code follows the
  Scala,
  Java,
  and
  Rust
  style guides. In case you are using a language not listed above, follow the Rust style guide.

[JaroslavTulach]

Shouldn't there be a licensing change? If the library is really excluded from engine, then it should affect the final license of the engine, shouldn't it?

[Akirathan]

Shouldn't there be a licensing change? If the library is really excluded from engine, then it should affect the final license of the engine, shouldn't it?

@JaroslavTulach The dependency scope was change to provided. According to the docs, it just marks the shapeless lib to be put on class-path during compilation, and not explicitly at runtime. So I believe the shapeless is still somewhere in our distribution component directory.

[hubertp]

Yes, circe adds those.
deps.txt

and for runtime-jar:
runtime-jar.txt