diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/deserialization/FirMemberDeserializer.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/deserialization/FirMemberDeserializer.kt
index fb23130dd37..5db0358e2db 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/deserialization/FirMemberDeserializer.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/deserialization/FirMemberDeserializer.kt
@@ -23,7 +23,6 @@ import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.serialization.deserialization.ProtoEnumFlags
 import org.jetbrains.kotlin.serialization.deserialization.getName
-import org.jetbrains.kotlin.types.Variance
 
 class FirDeserializationContext(
     val nameResolver: NameResolver,
@@ -234,11 +233,7 @@ class FirMemberDeserializer(private val c: FirDeserializationContext) {
         val local = c.childContext(emptyList())
         val isPrimary = !Flags.IS_SECONDARY.get(flags)
 
-        val typeParameters = klass.typeParameters.map {
-            FirTypeParameterImpl(c.session, null, FirTypeParameterSymbol(), it.name, Variance.INVARIANT, false).apply {
-                bounds.addAll(it.bounds)
-            }
-        }
+        val typeParameters = klass.typeParameters
 
         val delegatedSelfType = FirResolvedTypeRefImpl(
             null,
diff --git a/compiler/fir/resolve/testData/loadCompiledKotlin/annotations/types/ClassLiteralArgument.txt b/compiler/fir/resolve/testData/loadCompiledKotlin/annotations/types/ClassLiteralArgument.txt
index c1ce1028bb4..aec8d698534 100644
--- a/compiler/fir/resolve/testData/loadCompiledKotlin/annotations/types/ClassLiteralArgument.txt
+++ b/compiler/fir/resolve/testData/loadCompiledKotlin/annotations/types/ClassLiteralArgument.txt
@@ -28,7 +28,7 @@ public final class InnerGeneric<A, B> : R|kotlin/Any| {
     public constructor<A, B>(): R|test/InnerGeneric<A, B>|
 
     public final inner class Inner<in C, D : R|A|> : R|kotlin/Any| {
-        public constructor<C, D : R|A|>(): R|test/InnerGeneric.Inner<C, D>|
+        public constructor<in C, D : R|A|>(): R|test/InnerGeneric.Inner<C, D>|
 
     }
 
diff --git a/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassInParam.txt b/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassInParam.txt
index 30a205058bf..4bafc9e5fb0 100644
--- a/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassInParam.txt
+++ b/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassInParam.txt
@@ -1,4 +1,4 @@
 public final class Wine<in T> : R|kotlin/Any| {
-    public constructor<T>(): R|test/Wine<T>|
+    public constructor<in T>(): R|test/Wine<T>|
 
 }
diff --git a/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassOutParam.txt b/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassOutParam.txt
index 88b09545e9d..e3cdd19d60f 100644
--- a/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassOutParam.txt
+++ b/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassOutParam.txt
@@ -1,4 +1,4 @@
 public final class Juice<out T> : R|kotlin/Any| {
-    public constructor<T>(): R|test/Juice<T>|
+    public constructor<out T>(): R|test/Juice<T>|
 
 }
diff --git a/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassParamReferencesParam2.txt b/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassParamReferencesParam2.txt
index 9394336c27f..3d81dcea7b9 100644
--- a/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassParamReferencesParam2.txt
+++ b/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassParamReferencesParam2.txt
@@ -1,4 +1,4 @@
 public final class ClassParamReferencesParam<A, in B : R|A|> : R|kotlin/Any| {
-    public constructor<A, B : R|A|>(): R|test/ClassParamReferencesParam<A, B>|
+    public constructor<A, in B : R|A|>(): R|test/ClassParamReferencesParam<A, B>|
 
 }
diff --git a/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassTwoParams2.txt b/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassTwoParams2.txt
index 1de5446e1b4..7fc33f4ceff 100644
--- a/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassTwoParams2.txt
+++ b/compiler/fir/resolve/testData/loadCompiledKotlin/class/ClassTwoParams2.txt
@@ -1,4 +1,4 @@
 public final class ClassTwoParams<out P, Q> : R|kotlin/Any| {
-    public constructor<P, Q>(): R|test/ClassTwoParams<P, Q>|
+    public constructor<out P, Q>(): R|test/ClassTwoParams<P, Q>|
 
 }
diff --git a/compiler/fir/resolve/testData/loadCompiledKotlin/classFun/ClassInParamUsedInFun.txt b/compiler/fir/resolve/testData/loadCompiledKotlin/classFun/ClassInParamUsedInFun.txt
index 257ff4de95e..015085e2c9e 100644
--- a/compiler/fir/resolve/testData/loadCompiledKotlin/classFun/ClassInParamUsedInFun.txt
+++ b/compiler/fir/resolve/testData/loadCompiledKotlin/classFun/ClassInParamUsedInFun.txt
@@ -1,6 +1,6 @@
 public final class ClassParamUsedInFun<in T> : R|kotlin/Any| {
     public final fun f(t: R|T|): R|kotlin/Int|
 
-    public constructor<T>(): R|test/ClassParamUsedInFun<T>|
+    public constructor<in T>(): R|test/ClassParamUsedInFun<T>|
 
 }
diff --git a/compiler/fir/resolve/testData/loadCompiledKotlin/visibility/PrivateToThis.txt b/compiler/fir/resolve/testData/loadCompiledKotlin/visibility/PrivateToThis.txt
index 6857efe8f4b..6b0a9f8cf18 100644
--- a/compiler/fir/resolve/testData/loadCompiledKotlin/visibility/PrivateToThis.txt
+++ b/compiler/fir/resolve/testData/loadCompiledKotlin/visibility/PrivateToThis.txt
@@ -15,6 +15,6 @@ public final class A<in I> : R|kotlin/Any| {
         private/*private to this*/ get(): R|I|
         private/*private to this*/ set(value: R|I|): kotlin/Unit
 
-    public constructor<I>(): R|test/A<I>|
+    public constructor<in I>(): R|test/A<I>|
 
 }
diff --git a/compiler/fir/resolve/testData/resolve/stdlib/problems.txt b/compiler/fir/resolve/testData/resolve/stdlib/problems.txt
index 9fcf50d1053..d6dd51cb6af 100644
--- a/compiler/fir/resolve/testData/resolve/stdlib/problems.txt
+++ b/compiler/fir/resolve/testData/resolve/stdlib/problems.txt
@@ -36,8 +36,8 @@ FILE: problems.kt
         }
     public final val t: <ERROR TYPE REF: Ambiguity: bar, [/bar, /bar]> = String().<Ambiguity: bar, [/bar, /bar]>#
         public get(): <ERROR TYPE REF: Ambiguity: bar, [/bar, /bar]>
-    public final val p: <ERROR TYPE REF: Inapplicable(INAPPLICABLE): [kotlin/Pair.Pair]> = <Inapplicable(INAPPLICABLE): [kotlin/Pair.Pair]>#(Int(0), String())
-        public get(): <ERROR TYPE REF: Inapplicable(INAPPLICABLE): [kotlin/Pair.Pair]>
+    public final val p: R|kotlin/Pair<kotlin/Int, kotlin/String>| = R|kotlin/Pair.Pair|<R|kotlin/Int|, R|kotlin/String|>(Int(0), String())
+        public get(): R|kotlin/Pair<kotlin/Int, kotlin/String>|
     public final class Base<T> : R|kotlin/Any| {
         public constructor<T>(x: R|T|): R|Base<T>| {
             super<R|kotlin/Any|>()
diff --git a/compiler/testData/ir/irText/expressions/genericConstructorCallWithTypeArguments.fir.txt b/compiler/testData/ir/irText/expressions/genericConstructorCallWithTypeArguments.fir.txt
index 667955c9b0f..ee9f4d02525 100644
--- a/compiler/testData/ir/irText/expressions/genericConstructorCallWithTypeArguments.fir.txt
+++ b/compiler/testData/ir/irText/expressions/genericConstructorCallWithTypeArguments.fir.txt
@@ -15,8 +15,8 @@ FILE fqName:<root> fileName:/genericConstructorCallWithTypeArguments.kt
         CONSTRUCTOR_CALL 'public constructor <init> (size: kotlin.Int, init: kotlin.Function1<kotlin.Int, T of kotlin.Array>) declared in kotlin.Array' type=kotlin.Array<T of <root>.testArray> origin=null
           <class: T>: <none>
           size: GET_VAR 'n: kotlin.Int declared in <root>.testArray' type=kotlin.Int origin=null
-          init: FUN_EXPR type=kotlin.Function1<kotlin.Int, T of kotlin.Array> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:kotlin.Int) returnType:T of kotlin.Array
+          init: FUN_EXPR type=kotlin.Function1<kotlin.Int, T of <root>.testArray> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:kotlin.Int) returnType:T of <root>.testArray
               VALUE_PARAMETER name:it index:0 type:kotlin.Int
               BLOCK_BODY
                 CALL 'public abstract fun invoke (): T of <root>.testArray declared in kotlin.Function0' type=T of <root>.testArray origin=null