Use CtxLazy for varargs annotation

Author: TheElectronWill

compiler/src/dotty/tools/dotc/transform/ElimRepeated.scala

@@ -15,7 +15,6 @@ import Denotations._, SymDenotations._
 import dotty.tools.dotc.ast.tpd
 import TypeErasure.erasure
 import DenotTransformers._
-import dotty.tools.backend.jvm.DottyBackendInterface.requiredClass
 
 object ElimRepeated {
   val name: String = "elimRepeated"
@@ -27,6 +26,9 @@ object ElimRepeated {
 class ElimRepeated extends MiniPhase with InfoTransformer { thisPhase =>
   import ast.tpd._
 
+  private val varargsAnnot = new CtxLazy(
+    summon[Context].requiredClass("scala.annotation.varargs"))
+
   override def phaseName: String = ElimRepeated.name
 
   override def changesMembers: Boolean = true // the phase adds vararg bridges
@@ -48,7 +50,7 @@ class ElimRepeated extends MiniPhase with InfoTransformer { thisPhase =>
 
   private def overridesJava(sym: Symbol)(implicit ctx: Context) = sym.allOverriddenSymbols.exists(_.is(JavaDefined))
 
-  private def hasVargsAnnotation(sym: Symbol)(using ctx: Context) = sym.hasAnnotation(requiredClass[scala.annotation.varargs])
+  private def hasVargsAnnotation(sym: Symbol)(using ctx: Context) = sym.hasAnnotation(varargsAnnot())
 
   private def elimRepeated(tp: Type)(implicit ctx: Context): Type = tp.stripTypeVar match {
     case tp @ MethodTpe(paramNames, paramTypes, resultType) =>