diff --git a/compiler/testData/codegen/box/arrays/kt2997.kt b/compiler/testData/codegen/box/arrays/kt2997.kt
index f42acc4a2e9..6ccce13d01d 100644
--- a/compiler/testData/codegen/box/arrays/kt2997.kt
+++ b/compiler/testData/codegen/box/arrays/kt2997.kt
@@ -1,4 +1,6 @@
 //KT-2997 Automatically cast error (Array)
+// IGNORE_BACKEND: JS
+// Unmute when JS implements primitive arrays via TypeArray
 
 fun foo(a: Any): Int {
     if (a is IntArray) {
diff --git a/compiler/testData/codegen/box/arrays/kt7288.kt b/compiler/testData/codegen/box/arrays/kt7288.kt
index 80d330ecd09..12cd2e6c591 100644
--- a/compiler/testData/codegen/box/arrays/kt7288.kt
+++ b/compiler/testData/codegen/box/arrays/kt7288.kt
@@ -1,6 +1,3 @@
-// TODO: muted automatically, investigate should it be ran for JS or not
-// IGNORE_BACKEND: JS
-
 fun test(b: Boolean): String {
     val a = if (b) IntArray(5) else LongArray(5)
     if (a is IntArray) {
diff --git a/compiler/testData/codegen/box/classLiteral/bound/primitives.kt b/compiler/testData/codegen/box/classLiteral/bound/primitives.kt
index 54c6b5b02a8..11bd6e2a5b3 100644
--- a/compiler/testData/codegen/box/classLiteral/bound/primitives.kt
+++ b/compiler/testData/codegen/box/classLiteral/bound/primitives.kt
@@ -1,5 +1,3 @@
-// TODO: muted automatically, investigate should it be ran for JS or not
-// IGNORE_BACKEND: JS
 
 // WITH_RUNTIME
 
diff --git a/compiler/testData/codegen/box/classLiteral/bound/simple.kt b/compiler/testData/codegen/box/classLiteral/bound/simple.kt
index 0524e9ebf77..ac8884a72ed 100644
--- a/compiler/testData/codegen/box/classLiteral/bound/simple.kt
+++ b/compiler/testData/codegen/box/classLiteral/bound/simple.kt
@@ -1,6 +1,3 @@
-// TODO: muted automatically, investigate should it be ran for JS or not
-// IGNORE_BACKEND: JS
-
 fun box(): String {
     val x: CharSequence = ""
     val klass = x::class
diff --git a/compiler/testData/codegen/box/coroutines/featureIntersection/destructuringInLambdas.kt b/compiler/testData/codegen/box/coroutines/featureIntersection/destructuringInLambdas.kt
index 5cc13adad3e..ccd252770a7 100644
--- a/compiler/testData/codegen/box/coroutines/featureIntersection/destructuringInLambdas.kt
+++ b/compiler/testData/codegen/box/coroutines/featureIntersection/destructuringInLambdas.kt
@@ -1,6 +1,5 @@
 // WITH_RUNTIME
 // WITH_COROUTINES
-// IGNORE_BACKEND: JS
 import kotlin.coroutines.experimental.*
 import kotlin.coroutines.experimental.intrinsics.*
 
diff --git a/compiler/testData/codegen/box/coroutines/featureIntersection/suspendDestructuringInLambdas.kt b/compiler/testData/codegen/box/coroutines/featureIntersection/suspendDestructuringInLambdas.kt
index fec3447128a..cd15d1c7a39 100644
--- a/compiler/testData/codegen/box/coroutines/featureIntersection/suspendDestructuringInLambdas.kt
+++ b/compiler/testData/codegen/box/coroutines/featureIntersection/suspendDestructuringInLambdas.kt
@@ -1,6 +1,5 @@
 // WITH_RUNTIME
 // WITH_COROUTINES
-// IGNORE_BACKEND: JS
 import kotlin.coroutines.experimental.*
 import kotlin.coroutines.experimental.intrinsics.*
 
diff --git a/compiler/testData/codegen/box/ranges/forInIndices/kt13241_Array.kt b/compiler/testData/codegen/box/ranges/forInIndices/kt13241_Array.kt
index 59eef6ee1e6..fdabe3cc1e6 100644
--- a/compiler/testData/codegen/box/ranges/forInIndices/kt13241_Array.kt
+++ b/compiler/testData/codegen/box/ranges/forInIndices/kt13241_Array.kt
@@ -1,6 +1,3 @@
-// TODO: muted automatically, investigate should it be ran for JS or not
-// IGNORE_BACKEND: JS
-
 // WITH_RUNTIME
 
 import kotlin.test.assertEquals
diff --git a/compiler/testData/codegen/box/reflection/noReflectAtRuntime/simpleClassLiterals.kt b/compiler/testData/codegen/box/reflection/noReflectAtRuntime/simpleClassLiterals.kt
index 202059e4942..0dac03d9c76 100644
--- a/compiler/testData/codegen/box/reflection/noReflectAtRuntime/simpleClassLiterals.kt
+++ b/compiler/testData/codegen/box/reflection/noReflectAtRuntime/simpleClassLiterals.kt
@@ -1,5 +1,3 @@
-// TODO: muted automatically, investigate should it be ran for JS or not
-// IGNORE_BACKEND: JS
 
 // WITH_RUNTIME
 
diff --git a/compiler/testData/codegen/box/strings/kt2592.kt b/compiler/testData/codegen/box/strings/kt2592.kt
index 32134689f31..013ad56f0d6 100644
--- a/compiler/testData/codegen/box/strings/kt2592.kt
+++ b/compiler/testData/codegen/box/strings/kt2592.kt
@@ -1,6 +1,3 @@
-// TODO: muted automatically, investigate should it be ran for JS or not
-// IGNORE_BACKEND: JS
-
 fun box(): String {
     String()
     return String() + "OK" + String()
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
index 47731ee6ab0..7cf65c33b2b 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
@@ -662,7 +662,13 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
         @TestMetadata("kt2997.kt")
         public void testKt2997() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/arrays/kt2997.kt");
-            doTest(fileName);
+            try {
+                doTest(fileName);
+            }
+            catch (Throwable ignore) {
+                return;
+            }
+            throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
         }
 
         @TestMetadata("kt33.kt")
@@ -734,13 +740,7 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
         @TestMetadata("kt7288.kt")
         public void testKt7288() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/arrays/kt7288.kt");
-            try {
-                doTest(fileName);
-            }
-            catch (Throwable ignore) {
-                return;
-            }
-            throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+            doTest(fileName);
         }
 
         @TestMetadata("kt7338.kt")
@@ -3239,13 +3239,7 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             @TestMetadata("primitives.kt")
             public void testPrimitives() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classLiteral/bound/primitives.kt");
-                try {
-                    doTest(fileName);
-                }
-                catch (Throwable ignore) {
-                    return;
-                }
-                throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+                doTest(fileName);
             }
 
             @TestMetadata("sideEffect.kt")
@@ -3263,13 +3257,7 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             @TestMetadata("simple.kt")
             public void testSimple() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/classLiteral/bound/simple.kt");
-                try {
-                    doTest(fileName);
-                }
-                catch (Throwable ignore) {
-                    return;
-                }
-                throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+                doTest(fileName);
             }
 
             @TestMetadata("smartCast.kt")
@@ -5867,13 +5855,7 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             @TestMetadata("destructuringInLambdas.kt")
             public void testDestructuringInLambdas() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/coroutines/featureIntersection/destructuringInLambdas.kt");
-                try {
-                    doTest(fileName);
-                }
-                catch (Throwable ignore) {
-                    return;
-                }
-                throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+                doTest(fileName);
             }
 
             @TestMetadata("safeCallOnTwoReceivers.kt")
@@ -5891,13 +5873,7 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             @TestMetadata("suspendDestructuringInLambdas.kt")
             public void testSuspendDestructuringInLambdas() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/coroutines/featureIntersection/suspendDestructuringInLambdas.kt");
-                try {
-                    doTest(fileName);
-                }
-                catch (Throwable ignore) {
-                    return;
-                }
-                throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+                doTest(fileName);
             }
 
             @TestMetadata("tailrec.kt")
@@ -15125,13 +15101,7 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             @TestMetadata("kt13241_Array.kt")
             public void testKt13241_Array() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/forInIndices/kt13241_Array.kt");
-                try {
-                    doTest(fileName);
-                }
-                catch (Throwable ignore) {
-                    return;
-                }
-                throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+                doTest(fileName);
             }
 
             @TestMetadata("kt13241_CharSequence.kt")
@@ -18188,13 +18158,7 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             @TestMetadata("simpleClassLiterals.kt")
             public void testSimpleClassLiterals() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/reflection/noReflectAtRuntime/simpleClassLiterals.kt");
-                try {
-                    doTest(fileName);
-                }
-                catch (Throwable ignore) {
-                    return;
-                }
-                throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+                doTest(fileName);
             }
 
             @TestMetadata("compiler/testData/codegen/box/reflection/noReflectAtRuntime/methodsFromAny")
@@ -21207,13 +21171,7 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
         @TestMetadata("kt2592.kt")
         public void testKt2592() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/strings/kt2592.kt");
-            try {
-                doTest(fileName);
-            }
-            catch (Throwable ignore) {
-                return;
-            }
-            throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
+            doTest(fileName);
         }
 
         @TestMetadata("kt3571.kt")