diff --git a/core/builtins/src/kotlin/Progressions.kt b/core/builtins/src/kotlin/Progressions.kt
index 704d49f895c..705cc6a0f66 100644
--- a/core/builtins/src/kotlin/Progressions.kt
+++ b/core/builtins/src/kotlin/Progressions.kt
@@ -31,7 +31,7 @@ public open class CharProgression
             step: Int
     ) : Iterable<Char> {
     init {
-        if (step == 0) throw IllegalArgumentException("Step must be non-zero")
+        if (step == 0) throw kotlin.IllegalArgumentException("Step must be non-zero")
     }
 
     /**
@@ -85,7 +85,7 @@ public open class IntProgression
             step: Int
     ) : Iterable<Int> {
     init {
-        if (step == 0) throw IllegalArgumentException("Step must be non-zero")
+        if (step == 0) throw kotlin.IllegalArgumentException("Step must be non-zero")
     }
 
     /**
@@ -139,7 +139,7 @@ public open class LongProgression
             step: Long
     ) : Iterable<Long> {
     init {
-        if (step == 0L) throw IllegalArgumentException("Step must be non-zero")
+        if (step == 0L) throw kotlin.IllegalArgumentException("Step must be non-zero")
     }
 
     /**
diff --git a/core/builtins/src/kotlin/internal/progressionUtil.kt b/core/builtins/src/kotlin/internal/progressionUtil.kt
index 026c99fb4ef..31a755ecff1 100644
--- a/core/builtins/src/kotlin/internal/progressionUtil.kt
+++ b/core/builtins/src/kotlin/internal/progressionUtil.kt
@@ -57,7 +57,7 @@ internal fun getProgressionLastElement(start: Int, end: Int, step: Int): Int {
         return end + differenceModulo(start, end, -step)
     }
     else {
-        throw IllegalArgumentException("Step is zero.")
+        throw kotlin.IllegalArgumentException("Step is zero.")
     }
 }
 
@@ -82,6 +82,6 @@ internal fun getProgressionLastElement(start: Long, end: Long, step: Long): Long
         return end + differenceModulo(start, end, -step)
     }
     else {
-        throw IllegalArgumentException("Step is zero.")
+        throw kotlin.IllegalArgumentException("Step is zero.")
     }
 }
diff --git a/core/runtime.jvm/src/kotlin/jvm/internal/localVariableReferences.kt b/core/runtime.jvm/src/kotlin/jvm/internal/localVariableReferences.kt
index 9dc50a3bc7f..d9484835600 100644
--- a/core/runtime.jvm/src/kotlin/jvm/internal/localVariableReferences.kt
+++ b/core/runtime.jvm/src/kotlin/jvm/internal/localVariableReferences.kt
@@ -19,7 +19,7 @@ package kotlin.jvm.internal
 import kotlin.reflect.KDeclarationContainer
 
 private fun notSupportedError(): Nothing {
-    throw UnsupportedOperationException("Not supported for local property reference.")
+    throw kotlin.UnsupportedOperationException("Not supported for local property reference.")
 }
 
 open class LocalVariableReference : PropertyReference0() {
diff --git a/generators/src/org/jetbrains/kotlin/generators/builtins/progressions.kt b/generators/src/org/jetbrains/kotlin/generators/builtins/progressions.kt
index 2c549aa2f99..5358a58c1f5 100644
--- a/generators/src/org/jetbrains/kotlin/generators/builtins/progressions.kt
+++ b/generators/src/org/jetbrains/kotlin/generators/builtins/progressions.kt
@@ -35,7 +35,7 @@ class GenerateProgressions(out: PrintWriter) : BuiltInsSourceGenerator(out) {
             LONG -> "0L"
             else -> "0"
         }
-        val checkZero = "if (step == $zero) throw IllegalArgumentException(\"Step must be non-zero\")"
+        val checkZero = "if (step == $zero) throw kotlin.IllegalArgumentException(\"Step must be non-zero\")"
 
         val hashCode = "=\n" + when (kind) {
             CHAR ->