Compile dotty lib with -Yerased-terms to support erasedValue

Author: nicolasstucki

project/Build.scala

@@ -737,6 +737,8 @@ object Build {
 
   lazy val `dotty-library` = project.in(file("library")).asDottyLibrary(NonBootstrapped)
   lazy val `dotty-library-bootstrapped`: Project = project.in(file("library")).asDottyLibrary(Bootstrapped)
+    // TODO: move -Yerased-terms to dottyLibrarySettings on reference compiler update
+    .settings(scalacOptions in Compile += "-Yerased-terms") // support declaration of scala.compiletime.erasedValue
 
   def dottyLibrary(implicit mode: Mode): Project = mode match {
     case NonBootstrapped => `dotty-library`
@@ -758,6 +760,7 @@ object Build {
     settings(
       unmanagedSourceDirectories in Compile :=
         (unmanagedSourceDirectories in (`dotty-library-bootstrapped`, Compile)).value,
+      scalacOptions += "-Yerased-terms", // support declaration of scala.compiletime.erasedValue
     )
 
   lazy val tastyCoreSettings = Seq(