diff --git a/compiler/testData/codegen/box/when/stringOptimization/temporaryVarInWhenByStringIsDisposedProperly.kt b/compiler/testData/codegen/box/when/stringOptimization/temporaryVarInWhenByStringIsDisposedProperly.kt
index 802657f9004..87e50a57db5 100644
--- a/compiler/testData/codegen/box/when/stringOptimization/temporaryVarInWhenByStringIsDisposedProperly.kt
+++ b/compiler/testData/codegen/box/when/stringOptimization/temporaryVarInWhenByStringIsDisposedProperly.kt
@@ -1,9 +1,10 @@
+// IGNORE_BACKEND: JS_IR
 // WITH_RUNTIME
 
 val String.name get() = this
 
 fun List<String>.normalize(): List<String> {
-    val list = ArrayList<String>(this.size)
+    val list = ArrayList<String>()
     for (str in this) {
         when (str.name) {
             "." -> {}
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/denseIntSwitchWithSubjectVariable.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/denseIntSwitchWithSubjectVariable.kt
index 7baeb408ad4..8b161b99c9d 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/denseIntSwitchWithSubjectVariable.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/denseIntSwitchWithSubjectVariable.kt
@@ -1,6 +1,6 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject
 // WITH_RUNTIME
-// IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS, JS_IR
 
 fun dense(x: Int): Int {
     return when (val xx = x) {
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/ieee754Equality.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/ieee754Equality.kt
index 860fbf9aa41..d4eae378c58 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/ieee754Equality.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/ieee754Equality.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject
-// IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS, JS_IR
 
 val dz = -0.0
 val fz = -0.0f
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/ieee754EqualityWithSmartCast.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/ieee754EqualityWithSmartCast.kt
index 2dbaa088afd..183e2b6545b 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/ieee754EqualityWithSmartCast.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/ieee754EqualityWithSmartCast.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject +ProperIeee754Comparisons
-// IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS, JS_IR
 
 val az: Any = -0.0
 val afz: Any = -0.0f
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/rangeCheckOnSubjectVariable.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/rangeCheckOnSubjectVariable.kt
index c093688f7d6..fc37fb3115b 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/rangeCheckOnSubjectVariable.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/rangeCheckOnSubjectVariable.kt
@@ -1,4 +1,5 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject
+// IGNORE_BACKEND: JS_IR
 
 val x = 1
 
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/sparseIntSwitchWithSubjectVariable.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/sparseIntSwitchWithSubjectVariable.kt
index 4c010f55401..4bc4aaa5bb0 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/sparseIntSwitchWithSubjectVariable.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/sparseIntSwitchWithSubjectVariable.kt
@@ -1,6 +1,6 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject
 // WITH_RUNTIME
-// IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS, JS_IR
 
 fun sparse(x: Int): Int {
     return when (val xx = (x % 4) * 100) {
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/subjectExpressionIsEvaluatedOnce.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/subjectExpressionIsEvaluatedOnce.kt
index 0da0c54b834..2f4d0444658 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/subjectExpressionIsEvaluatedOnce.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/subjectExpressionIsEvaluatedOnce.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject
-// IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS, JS_IR
 
 var effectCount = 0
 
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/whenByEnum.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/whenByEnum.kt
index c2505a84c58..cad3744fcbb 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/whenByEnum.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/whenByEnum.kt
@@ -1,6 +1,6 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject
 // WITH_RUNTIME
-// IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS, JS_IR
 
 import kotlin.test.assertEquals
 
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/whenByNullableEnum.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/whenByNullableEnum.kt
index ef80be6e748..7777a4888e2 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/whenByNullableEnum.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/whenByNullableEnum.kt
@@ -1,6 +1,6 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject
 // WITH_RUNTIME
-// IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS, JS_IR
 
 import kotlin.test.assertEquals
 
diff --git a/compiler/testData/codegen/box/when/whenSubjectVariable/whenByString.kt b/compiler/testData/codegen/box/when/whenSubjectVariable/whenByString.kt
index 5d1a1a14044..49c80122e12 100644
--- a/compiler/testData/codegen/box/when/whenSubjectVariable/whenByString.kt
+++ b/compiler/testData/codegen/box/when/whenSubjectVariable/whenByString.kt
@@ -1,6 +1,6 @@
 // !LANGUAGE: +VariableDeclarationInWhenSubject
 // WITH_RUNTIME
-// IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS, JS_IR
 
 import kotlin.test.assertEquals