[JS IR BE] Fix translation for float literals

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/IrElementToJsExpressionTransformer.kt

@@ -44,11 +44,13 @@ class IrElementToJsExpressionTransformer : BaseIrElementToJsNodeTransformer<JsEx
             is IrConstKind.Int -> JsIntLiteral(kind.valueOf(expression))
             is IrConstKind.Long -> throw IllegalStateException("Long const should have been lowered at this point")
             is IrConstKind.Char -> throw IllegalStateException("Char const should have been lowered at this point")
-            is IrConstKind.Float -> JsDoubleLiteral(kind.valueOf(expression).toDouble())
+            is IrConstKind.Float -> JsDoubleLiteral(toDoubleConst(kind.valueOf(expression)))
             is IrConstKind.Double -> JsDoubleLiteral(kind.valueOf(expression))
         }
     }
 
+    private fun toDoubleConst(f: Float) = if (f.isInfinite() || f.isNaN()) f.toDouble() else f.toString().toDouble()
+
     override fun visitStringConcatenation(expression: IrStringConcatenation, context: JsGenerationContext): JsExpression {
         // TODO revisit
         return expression.arguments.fold<IrExpression, JsExpression>(JsStringLiteral("")) { jsExpr, irExpr ->

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