diff --git a/compiler/src/dotty/tools/dotc/core/Definitions.scala b/compiler/src/dotty/tools/dotc/core/Definitions.scala
index 60f375c116fc..39a1d0b4652b 100644
--- a/compiler/src/dotty/tools/dotc/core/Definitions.scala
+++ b/compiler/src/dotty/tools/dotc/core/Definitions.scala
@@ -1387,13 +1387,6 @@ class Definitions {
     else NoType
   }
 
-  val predefClassNames: Set[Name] =
-    Set("Predef$", "DeprecatedPredef", "LowPriorityImplicits").map(_.toTypeName.unmangleClassName)
-
-  /** Is `cls` the predef module class, or a class inherited by Predef? */
-  def isPredefClass(cls: Symbol): Boolean =
-    (cls.owner eq ScalaPackageClass) && predefClassNames.contains(cls.name)
-
   private val JavaImportFns: List[RootRef] = List(
     RootRef(() => JavaLangPackageVal.termRef)
   )
diff --git a/tests/neg-custom-args/deprecation/t3235-minimal.scala b/tests/neg-custom-args/deprecation/t3235-minimal.scala
index 3aef0eea2dae..f023614768bc 100644
--- a/tests/neg-custom-args/deprecation/t3235-minimal.scala
+++ b/tests/neg-custom-args/deprecation/t3235-minimal.scala
@@ -1,8 +1,8 @@
 object Test {
   def main(args: Array[String]): Unit = {
-    assert(123456789.round == 123456789) // error
-    assert(math.round(123456789) == 123456789) // error
-    assert(1234567890123456789L.round == 1234567890123456789L) // error
-    assert(math.round(1234567890123456789L) == 1234567890123456789L) // error
+    assert(123456789.round == 123456789) // error (Int to Flaot)
+    assert(math.round(123456789) == 123456789)
+    assert(1234567890123456789L.round == 1234567890123456789L) // error (Long to Float)
+    assert(math.round(1234567890123456789L) == 1234567890123456789L)
   }
 }