diff --git a/compiler/testData/codegen/box/classes/kt6136.kt b/compiler/testData/codegen/box/classes/kt6136.kt
index 09e0a805e71..14a14e1c4e0 100644
--- a/compiler/testData/codegen/box/classes/kt6136.kt
+++ b/compiler/testData/codegen/box/classes/kt6136.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 interface Id<T> {
     val id: T
 }
diff --git a/compiler/testData/codegen/box/dataClasses/copy/kt3033.kt b/compiler/testData/codegen/box/dataClasses/copy/kt3033.kt
index 14c92ac405f..7fc12756d88 100644
--- a/compiler/testData/codegen/box/dataClasses/copy/kt3033.kt
+++ b/compiler/testData/codegen/box/dataClasses/copy/kt3033.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 data class A(val a: Double, val b: Double)
 
 fun box() : String {
diff --git a/compiler/testData/codegen/box/dataClasses/copy/valInConstructorParams.kt b/compiler/testData/codegen/box/dataClasses/copy/valInConstructorParams.kt
index 22385985f85..a340685014e 100644
--- a/compiler/testData/codegen/box/dataClasses/copy/valInConstructorParams.kt
+++ b/compiler/testData/codegen/box/dataClasses/copy/valInConstructorParams.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 data class A(val a: Int, val b: String) {}
 
 fun box() : String {
diff --git a/compiler/testData/codegen/box/dataClasses/copy/varInConstructorParams.kt b/compiler/testData/codegen/box/dataClasses/copy/varInConstructorParams.kt
index e6a0aa51bc8..6cd1a25ae2c 100644
--- a/compiler/testData/codegen/box/dataClasses/copy/varInConstructorParams.kt
+++ b/compiler/testData/codegen/box/dataClasses/copy/varInConstructorParams.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 data class A(var a: Int, var b: String) {}
 
 fun box() : String {
diff --git a/compiler/testData/codegen/box/dataClasses/copy/withSecondaryConstructor.kt b/compiler/testData/codegen/box/dataClasses/copy/withSecondaryConstructor.kt
index e27a787cf5b..f997cea7708 100644
--- a/compiler/testData/codegen/box/dataClasses/copy/withSecondaryConstructor.kt
+++ b/compiler/testData/codegen/box/dataClasses/copy/withSecondaryConstructor.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 data class A(val o: String, val k: String) {
     constructor() : this("O", "k")
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/convention/kt9140.kt b/compiler/testData/codegen/box/defaultArguments/convention/kt9140.kt
index 982bd7fb19b..ea677b74a84 100644
--- a/compiler/testData/codegen/box/defaultArguments/convention/kt9140.kt
+++ b/compiler/testData/codegen/box/defaultArguments/convention/kt9140.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class X {
     operator fun get(name: String, type: String = "none") = name + type
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/convention/plusAssignWithDefaultInGetter.kt b/compiler/testData/codegen/box/defaultArguments/convention/plusAssignWithDefaultInGetter.kt
index ef0c933d5f6..0b6f63450de 100644
--- a/compiler/testData/codegen/box/defaultArguments/convention/plusAssignWithDefaultInGetter.kt
+++ b/compiler/testData/codegen/box/defaultArguments/convention/plusAssignWithDefaultInGetter.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class X {
     var result: String = "fail"
 
diff --git a/compiler/testData/codegen/box/defaultArguments/function/abstractClass.kt b/compiler/testData/codegen/box/defaultArguments/function/abstractClass.kt
index b7d2a3e9b91..c1cc5d0bd9e 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/abstractClass.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/abstractClass.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 abstract class Base {
     abstract fun foo(a: String = "abc"): String
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/function/covariantOverride.kt b/compiler/testData/codegen/box/defaultArguments/function/covariantOverride.kt
index 39793faf500..b2ad3e749c2 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/covariantOverride.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/covariantOverride.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 open class Foo {
     open fun foo(x: CharSequence = "O"): CharSequence = x
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/function/covariantOverrideGeneric.kt b/compiler/testData/codegen/box/defaultArguments/function/covariantOverrideGeneric.kt
index 98cff251ffc..9f24919d51d 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/covariantOverrideGeneric.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/covariantOverrideGeneric.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 open class Foo {
     open fun foo(x: CharSequence = "O"): CharSequence = x
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/function/extentionFunction.kt b/compiler/testData/codegen/box/defaultArguments/function/extentionFunction.kt
index 694725fcc6b..b985d4b6467 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/extentionFunction.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/extentionFunction.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun Int.foo(a: Int = 1): Int {
     return a
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionDouble.kt b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionDouble.kt
index b0a2afed1dc..8b4b1fbd712 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionDouble.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionDouble.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun Double.foo(a: Double = 1.0): Double {
     return a
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionDoubleTwoArgs.kt b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionDoubleTwoArgs.kt
index 489a9af9250..9c36a1335a3 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionDoubleTwoArgs.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionDoubleTwoArgs.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun Double.foo(a: Double = 1.0, b: Double = 1.0): Double {
     return a + b
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInClassObject.kt b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInClassObject.kt
index 25de5860d76..876be1766c2 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInClassObject.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInClassObject.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class A {
   companion object {
     fun Int.foo(a: Int = 1): Int {
diff --git a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInObject.kt b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInObject.kt
index 0395bff4008..d16105ac6b3 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInObject.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionInObject.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 object A {
   fun Int.foo(a: Int = 1): Int {
       return a
diff --git a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionWithOneDefArg.kt b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionWithOneDefArg.kt
index ae47e1e63a2..c905daed1b2 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionWithOneDefArg.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/extentionFunctionWithOneDefArg.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun Int.foo(a: Int = 1, b: String): Int {
     return a
 }
diff --git a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunction.kt b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunction.kt
index 811f80e662e..35a3e575fe4 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunction.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunction.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class A {
   fun Int.foo(a: Int = 1): Int {
       return a
diff --git a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDouble.kt b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDouble.kt
index 6d06b20af96..a18b571e32b 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDouble.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDouble.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class A {
   fun Double.foo(a: Double = 1.0): Double {
       return a
diff --git a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDoubleTwoArgs.kt b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDoubleTwoArgs.kt
index a3da1ae069d..844f5e88ef4 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDoubleTwoArgs.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/innerExtentionFunctionDoubleTwoArgs.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class A {
     fun Double.foo(a: Double = 1.0, b: Double = 1.0): Double {
         return a + b
diff --git a/compiler/testData/codegen/box/defaultArguments/function/memberFunctionManyArgs.kt b/compiler/testData/codegen/box/defaultArguments/function/memberFunctionManyArgs.kt
index 0525e9da6ea..def2549e106 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/memberFunctionManyArgs.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/memberFunctionManyArgs.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class A() {
     fun foo(a: Int = 1,
             b: Int = 2,
diff --git a/compiler/testData/codegen/box/defaultArguments/function/topLevelManyArgs.kt b/compiler/testData/codegen/box/defaultArguments/function/topLevelManyArgs.kt
index d32b4bb5242..1086f23b45f 100644
--- a/compiler/testData/codegen/box/defaultArguments/function/topLevelManyArgs.kt
+++ b/compiler/testData/codegen/box/defaultArguments/function/topLevelManyArgs.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun foo(a: Int = 1,
         b: Int = 2,
         c: Int = 3,
diff --git a/compiler/testData/codegen/box/defaultArguments/private/memberExtensionFunction.kt b/compiler/testData/codegen/box/defaultArguments/private/memberExtensionFunction.kt
index a37ad9252c2..01167805ef4 100644
--- a/compiler/testData/codegen/box/defaultArguments/private/memberExtensionFunction.kt
+++ b/compiler/testData/codegen/box/defaultArguments/private/memberExtensionFunction.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class A {
     private fun Int.foo(other: Int = 5): Int = this + other
 
diff --git a/compiler/testData/codegen/box/defaultArguments/private/memberFunction.kt b/compiler/testData/codegen/box/defaultArguments/private/memberFunction.kt
index 3f847c1b89d..64fe7c2de65 100644
--- a/compiler/testData/codegen/box/defaultArguments/private/memberFunction.kt
+++ b/compiler/testData/codegen/box/defaultArguments/private/memberFunction.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // KT-5786 NoSuchMethodError: no accessor for private fun with default arguments
 
 class A {
diff --git a/compiler/testData/codegen/box/defaultArguments/signature/kt9428.kt b/compiler/testData/codegen/box/defaultArguments/signature/kt9428.kt
index 7c6c00db18d..b9d89105d37 100644
--- a/compiler/testData/codegen/box/defaultArguments/signature/kt9428.kt
+++ b/compiler/testData/codegen/box/defaultArguments/signature/kt9428.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 open class Player(val name: String)
 open class SlashPlayer(name: String) : Player(name)
 
diff --git a/compiler/testData/codegen/box/defaultArguments/simpleFromOtherFile.kt b/compiler/testData/codegen/box/defaultArguments/simpleFromOtherFile.kt
index ea3227f14b4..e039250e9ef 100644
--- a/compiler/testData/codegen/box/defaultArguments/simpleFromOtherFile.kt
+++ b/compiler/testData/codegen/box/defaultArguments/simpleFromOtherFile.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // FILE: 1.kt
 
 fun box() = ok()
diff --git a/compiler/testData/codegen/box/extensionFunctions/kt3969.kt b/compiler/testData/codegen/box/extensionFunctions/kt3969.kt
index cca16e35542..1e34286ea50 100644
--- a/compiler/testData/codegen/box/extensionFunctions/kt3969.kt
+++ b/compiler/testData/codegen/box/extensionFunctions/kt3969.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 var result = "Fail"
 
 class A
diff --git a/compiler/testData/codegen/box/functions/defaultargs.kt b/compiler/testData/codegen/box/functions/defaultargs.kt
index 4178ad4f2d3..726a4d4db10 100644
--- a/compiler/testData/codegen/box/functions/defaultargs.kt
+++ b/compiler/testData/codegen/box/functions/defaultargs.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 open abstract class B {
     fun foo(arg: Int = 239 + 1) : Int = arg
 }
diff --git a/compiler/testData/codegen/box/functions/defaultargs5.kt b/compiler/testData/codegen/box/functions/defaultargs5.kt
index 1bbac4ceb94..91dc6f6be40 100644
--- a/compiler/testData/codegen/box/functions/defaultargs5.kt
+++ b/compiler/testData/codegen/box/functions/defaultargs5.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 open abstract class B {
     abstract fun foo2(arg: Int = 239) : Int
 }
diff --git a/compiler/testData/codegen/box/functions/defaultargs7.kt b/compiler/testData/codegen/box/functions/defaultargs7.kt
index 6b413710598..107929fad00 100644
--- a/compiler/testData/codegen/box/functions/defaultargs7.kt
+++ b/compiler/testData/codegen/box/functions/defaultargs7.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class A(val expected: Int) {
     fun foo(x: Int, y: Int = x + 20, z: Int = y * 2) = z == expected
 }
diff --git a/compiler/testData/codegen/box/functions/kt2271.kt b/compiler/testData/codegen/box/functions/kt2271.kt
index 284ef7a8b87..efc623a6519 100644
--- a/compiler/testData/codegen/box/functions/kt2271.kt
+++ b/compiler/testData/codegen/box/functions/kt2271.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun foo(i: Int, j: Int = i) = j
 
 fun box() = if (foo(1) == 1) "OK" else "fail"
diff --git a/compiler/testData/codegen/box/localClasses/localDataClass.kt b/compiler/testData/codegen/box/localClasses/localDataClass.kt
index 4ae118b8991..33cf16258d2 100644
--- a/compiler/testData/codegen/box/localClasses/localDataClass.kt
+++ b/compiler/testData/codegen/box/localClasses/localDataClass.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun box(): String {
     val capturedInConstructor = 1
 
diff --git a/compiler/testData/codegen/boxInline/defaultValues/33Parameters.kt b/compiler/testData/codegen/boxInline/defaultValues/33Parameters.kt
index 091ad034f4c..50a8bbc1fa4 100644
--- a/compiler/testData/codegen/boxInline/defaultValues/33Parameters.kt
+++ b/compiler/testData/codegen/boxInline/defaultValues/33Parameters.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // FILE: 1.kt
 
 package test
diff --git a/compiler/testData/codegen/boxInline/defaultValues/inlineInDefaultParameter.kt b/compiler/testData/codegen/boxInline/defaultValues/inlineInDefaultParameter.kt
index 7af2be99c37..191d6171085 100644
--- a/compiler/testData/codegen/boxInline/defaultValues/inlineInDefaultParameter.kt
+++ b/compiler/testData/codegen/boxInline/defaultValues/inlineInDefaultParameter.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // FILE: 1.kt
 
 package test
diff --git a/js/js.translator/testData/box/dataClass/copy.kt b/js/js.translator/testData/box/dataClass/copy.kt
index f2187b6cb52..706a760f3ac 100644
--- a/js/js.translator/testData/box/dataClass/copy.kt
+++ b/js/js.translator/testData/box/dataClass/copy.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1118
 package foo
 
diff --git a/js/js.translator/testData/box/defaultArguments/complexExpressionAsDefaultArgument.kt b/js/js.translator/testData/box/defaultArguments/complexExpressionAsDefaultArgument.kt
index c0d84278520..d4f217aafcf 100644
--- a/js/js.translator/testData/box/defaultArguments/complexExpressionAsDefaultArgument.kt
+++ b/js/js.translator/testData/box/defaultArguments/complexExpressionAsDefaultArgument.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1116
 // http://youtrack.jetbrains.com/issue/KT-4879
 // JS: extra side effect when use when in default arguments
diff --git a/js/js.translator/testData/box/defaultArguments/complexExpressionAsOverriddenDefaultArgument.kt b/js/js.translator/testData/box/defaultArguments/complexExpressionAsOverriddenDefaultArgument.kt
index b332a86bcbc..78ebbc217ce 100644
--- a/js/js.translator/testData/box/defaultArguments/complexExpressionAsOverriddenDefaultArgument.kt
+++ b/js/js.translator/testData/box/defaultArguments/complexExpressionAsOverriddenDefaultArgument.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1130
 // http://youtrack.jetbrains.com/issue/KT-4879
 // JS: extra side effect when use when in default arguments
diff --git a/js/js.translator/testData/box/defaultArguments/defaultArgumentsInFunctionWithExpressionAsBody.kt b/js/js.translator/testData/box/defaultArguments/defaultArgumentsInFunctionWithExpressionAsBody.kt
index 4decff29857..b28f7366cee 100644
--- a/js/js.translator/testData/box/defaultArguments/defaultArgumentsInFunctionWithExpressionAsBody.kt
+++ b/js/js.translator/testData/box/defaultArguments/defaultArgumentsInFunctionWithExpressionAsBody.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1117
 // KT-6037: KT-6037 Javascript default function arguments fill code generated in wrong order on method without "return keyword"
 package foo
diff --git a/js/js.translator/testData/box/defaultArguments/funInAbstractClassWithDefArg.kt b/js/js.translator/testData/box/defaultArguments/funInAbstractClassWithDefArg.kt
index 83c6bf98236..c18ab341bd8 100644
--- a/js/js.translator/testData/box/defaultArguments/funInAbstractClassWithDefArg.kt
+++ b/js/js.translator/testData/box/defaultArguments/funInAbstractClassWithDefArg.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1118
 package foo
 
diff --git a/js/js.translator/testData/box/defaultArguments/overloadFunWithDefArg.kt b/js/js.translator/testData/box/defaultArguments/overloadFunWithDefArg.kt
index c82c8243046..cab4f4d726c 100644
--- a/js/js.translator/testData/box/defaultArguments/overloadFunWithDefArg.kt
+++ b/js/js.translator/testData/box/defaultArguments/overloadFunWithDefArg.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1120
 package foo
 
diff --git a/js/js.translator/testData/box/expression/misc/KT-1865.kt b/js/js.translator/testData/box/expression/misc/KT-1865.kt
index dcab5fc32bf..3ba032c380d 100644
--- a/js/js.translator/testData/box/expression/misc/KT-1865.kt
+++ b/js/js.translator/testData/box/expression/misc/KT-1865.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1120
 package foo
 
diff --git a/js/js.translator/testData/box/expression/stringTemplates/stringValues.kt b/js/js.translator/testData/box/expression/stringTemplates/stringValues.kt
index 30c3bc24c22..077b19cc22f 100644
--- a/js/js.translator/testData/box/expression/stringTemplates/stringValues.kt
+++ b/js/js.translator/testData/box/expression/stringTemplates/stringValues.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1112
 package foo
 
diff --git a/js/js.translator/testData/box/inlineMultiFile/inlineInDefaultParameter.kt b/js/js.translator/testData/box/inlineMultiFile/inlineInDefaultParameter.kt
index 0c94d875d70..bf7dc1482ba 100644
--- a/js/js.translator/testData/box/inlineMultiFile/inlineInDefaultParameter.kt
+++ b/js/js.translator/testData/box/inlineMultiFile/inlineInDefaultParameter.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1109
 /*
  * Copy of JVM-backend test