diff --git a/compiler/testData/builtin-classes/java6/kotlin.txt b/compiler/testData/builtin-classes/java6/kotlin.txt
index 589af2c83ae..c830f983c03 100644
--- a/compiler/testData/builtin-classes/java6/kotlin.txt
+++ b/compiler/testData/builtin-classes/java6/kotlin.txt
@@ -79,12 +79,12 @@ public final class Byte : kotlin.Number, kotlin.Comparable<kotlin.Byte>, java.io
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Int
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Float): kotlin.Float
@@ -263,12 +263,12 @@ public final class Double : kotlin.Number, kotlin.Comparable<kotlin.Double>, jav
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Double
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Double
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Float): kotlin.Double
@@ -369,12 +369,12 @@ public final class Float : kotlin.Number, kotlin.Comparable<kotlin.Float>, java.
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Float
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Float
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Float
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Float
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Float): kotlin.Float
@@ -456,12 +456,12 @@ public final class Int : kotlin.Number, kotlin.Comparable<kotlin.Int>, java.io.S
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Int
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
     public final infix fun or(/*0*/ other: kotlin.Int): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
@@ -547,12 +547,12 @@ public final class Long : kotlin.Number, kotlin.Comparable<kotlin.Long>, java.io
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Long
     public final infix fun or(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Long
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
@@ -669,12 +669,12 @@ public final class Short : kotlin.Number, kotlin.Comparable<kotlin.Short>, java.
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Int
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Float): kotlin.Float
diff --git a/compiler/testData/builtin-classes/java8/kotlin.txt b/compiler/testData/builtin-classes/java8/kotlin.txt
index 4a6c3ebdcf8..348f27ce759 100644
--- a/compiler/testData/builtin-classes/java8/kotlin.txt
+++ b/compiler/testData/builtin-classes/java8/kotlin.txt
@@ -79,12 +79,12 @@ public final class Byte : kotlin.Number, kotlin.Comparable<kotlin.Byte>, java.io
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Int
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Float): kotlin.Float
@@ -265,12 +265,12 @@ public final class Double : kotlin.Number, kotlin.Comparable<kotlin.Double>, jav
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Double
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Double
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Float): kotlin.Double
@@ -371,12 +371,12 @@ public final class Float : kotlin.Number, kotlin.Comparable<kotlin.Float>, java.
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Float
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Float
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Float
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Float
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Float): kotlin.Float
@@ -458,12 +458,12 @@ public final class Int : kotlin.Number, kotlin.Comparable<kotlin.Int>, java.io.S
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Int
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
     public final infix fun or(/*0*/ other: kotlin.Int): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
@@ -549,12 +549,12 @@ public final class Long : kotlin.Number, kotlin.Comparable<kotlin.Long>, java.io
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Long
     public final infix fun or(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Long
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
@@ -671,12 +671,12 @@ public final class Short : kotlin.Number, kotlin.Comparable<kotlin.Short>, java.
     public final operator fun minus(/*0*/ other: kotlin.Int): kotlin.Int
     public final operator fun minus(/*0*/ other: kotlin.Long): kotlin.Long
     public final operator fun minus(/*0*/ other: kotlin.Short): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
-    @kotlin.Deprecated(level = DeprecationLevel.WARNING, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Byte): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Double): kotlin.Double
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Float): kotlin.Float
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Int): kotlin.Int
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Long): kotlin.Long
+    @kotlin.Deprecated(level = DeprecationLevel.ERROR, message = "Use rem(other) instead", replaceWith = kotlin.ReplaceWith(expression = "rem(other)", imports = {})) public final operator fun mod(/*0*/ other: kotlin.Short): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Byte): kotlin.Int
     public final operator fun plus(/*0*/ other: kotlin.Double): kotlin.Double
     public final operator fun plus(/*0*/ other: kotlin.Float): kotlin.Float
diff --git a/compiler/testData/diagnostics/tests/evaluate/intOverflow.kt b/compiler/testData/diagnostics/tests/evaluate/intOverflow.kt
index 2143593aaa6..43cd8710ec0 100644
--- a/compiler/testData/diagnostics/tests/evaluate/intOverflow.kt
+++ b/compiler/testData/diagnostics/tests/evaluate/intOverflow.kt
@@ -70,7 +70,7 @@ class A {
         val l21: Int = intMinValue - intMinValue
         val l22: Int = <!INTEGER_OVERFLOW!>intMinValue + <!INTEGER_OVERFLOW!>-intMinValue<!><!>
         val l23: Int = intMaxValue + <!INTEGER_OVERFLOW!>-intMinValue<!>
-§        val l24: Int = (-1).<!DEPRECATION_ERROR!>mod<!>(5)
+        val l24: Int = (-1).<!DEPRECATION_ERROR!>mod<!>(5)
         val l25: Int = (-1).rem(5)
         val l26: Int = (-1) % 5
     }
diff --git a/compiler/testData/ir/irText/expressions/simpleOperators.kt b/compiler/testData/ir/irText/expressions/simpleOperators.kt
index 44eece271a1..c44dde5e193 100644
--- a/compiler/testData/ir/irText/expressions/simpleOperators.kt
+++ b/compiler/testData/ir/irText/expressions/simpleOperators.kt
@@ -9,4 +9,4 @@ fun test1x(a: Int, b: Int) = a.plus(b)
 fun test2x(a: Int, b: Int) = a.minus(b)
 fun test3x(a: Int, b: Int) = a.times(b)
 fun test4x(a: Int, b: Int) = a.div(b)
-fun test5x(a: Int, b: Int) = a.mod(b)
\ No newline at end of file
+fun test5x(a: Int, b: Int) = a.rem(b)
\ No newline at end of file
diff --git a/compiler/testData/ir/irText/expressions/simpleOperators.txt b/compiler/testData/ir/irText/expressions/simpleOperators.txt
index 9f73c1d811d..4335d642998 100644
--- a/compiler/testData/ir/irText/expressions/simpleOperators.txt
+++ b/compiler/testData/ir/irText/expressions/simpleOperators.txt
@@ -84,7 +84,7 @@ FILE fqName:<root> fileName:/simpleOperators.kt
     VALUE_PARAMETER name:b index:1 type:kotlin.Int flags:
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='test5x(Int, Int): Int'
-        CALL 'mod(Int): Int' type=kotlin.Int origin=null
+        CALL 'rem(Int): Int' type=kotlin.Int origin=null
           $this: GET_VAR 'value-parameter a: Int' type=kotlin.Int origin=null
           other: GET_VAR 'value-parameter b: Int' type=kotlin.Int origin=null
 
diff --git a/libraries/stdlib/jvm/src/kotlin/util/BigDecimals.kt b/libraries/stdlib/jvm/src/kotlin/util/BigDecimals.kt
index 73b7e35c67f..30f21a09a68 100644
--- a/libraries/stdlib/jvm/src/kotlin/util/BigDecimals.kt
+++ b/libraries/stdlib/jvm/src/kotlin/util/BigDecimals.kt
@@ -43,7 +43,7 @@ public inline operator fun BigDecimal.div(other: BigDecimal): BigDecimal = this.
  * Enables the use of the `%` operator for [BigDecimal] instances.
  */
 @kotlin.internal.InlineOnly
-@Deprecated("Use rem(other) instead", ReplaceWith("rem(other)"), DeprecationLevel.WARNING)
+@Deprecated("Use rem(other) instead", ReplaceWith("rem(other)"), DeprecationLevel.ERROR)
 public inline operator fun BigDecimal.mod(other: BigDecimal): BigDecimal = this.remainder(other)
 
 /**
diff --git a/libraries/stdlib/jvm/test/numbers/BigNumbersTest.kt b/libraries/stdlib/jvm/test/numbers/BigNumbersTest.kt
index 040f51092fa..dc905ff749d 100644
--- a/libraries/stdlib/jvm/test/numbers/BigNumbersTest.kt
+++ b/libraries/stdlib/jvm/test/numbers/BigNumbersTest.kt
@@ -72,7 +72,7 @@ class BigNumbersTest {
         assertEquals(BigDecimal("2"), BigDecimal("4") / a)
         assertEquals(BigDecimal("-2"), -a)
         assertEquals(BigDecimal("-2"), -a % b)
-        assertEquals(BigDecimal("-2"), (-a).mod(b))
+        assertEquals(BigDecimal("-2"), @Suppress("DEPRECATION_ERROR") (-a).mod(b))
         assertEquals(BigDecimal("-2"), (-a).rem(b))
 
         assertEquals(BigDecimal("3"), a.inc())