wip Move Error interface in a separate file

Author: anatoliykmetyuk

library/src/scala/compiletime/testing/Error.scala

@@ -0,0 +1,10 @@
+package scala.compiletime.testing
+
+/** Represents a compile-time error */
+case class Error(message: String, lineContent: String, column: Int, kind: ErrorKind)
+
+/** An error can be either a parse-time or a typecheck-time */
+sealed trait ErrorKind  // TODO make this enum, so far not doable because ScalaJS compilation fails on it
+object ErrorKind
+  case object Parser extends ErrorKind
+  case object Typer extends ErrorKind

library/src/scala/compiletime/testing/package.scala

@@ -1,17 +1,7 @@
 package scala.compiletime
 
-import scala.quoted._
-
 package object testing {
 
-  /** Represents a compile-time error */
-  case class Error(message: String, lineContent: String, column: Int, kind: ErrorKind)
-
-  /** An error can be either a parse-time or a typecheck-time */
-  sealed trait ErrorKind  // TODO make this enum, so far not doable because ScalaJS compilation fails on it
-  object ErrorKind
-    case object Parser extends ErrorKind
-    case object Typer extends ErrorKind
 
   /** Whether the code type checks in the current context?
    *