[JS IR BE] Fix translation for float literals

compiler/testData/codegen/box/constants/float.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun box(): String {
     if (1F != 1.toFloat()) return "fail 1"
     if (1.0F != 1.0.toFloat()) return "fail 2"

compiler/testData/codegen/box/controlStructures/forInArray/forInArraySpecializedToUntil.kt

@@ -1,4 +1,5 @@
 // IGNORE_BACKEND: JS
+// IGNORE_BACKEND: JS_IR
 // WITH_RUNTIME
 
 fun checkByteArray(): Boolean {

compiler/testData/codegen/box/strings/constInStringTemplate.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // WITH_RUNTIME
 
 import kotlin.test.assertEquals