JS: Fix TranslationRuntimeException on 'for (x in ("a"))' #KT-22376 Fixed

js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/LoopTranslator.kt

@@ -99,7 +99,10 @@ private val indicesFqName = FqName("kotlin.collections.indices")
 private val sequenceFqName = FqName("kotlin.sequences.Sequence")
 
 fun translateForExpression(expression: KtForExpression, context: TranslationContext): JsStatement {
-    val loopRange = KtPsiUtil.deparenthesize(getLoopRange(expression))!!
+    val loopRange = getLoopRange(expression).let {
+        val deparenthesized = KtPsiUtil.deparenthesize(it)!!
+        if (deparenthesized is KtStringTemplateExpression) it else deparenthesized
+    }
     val rangeType = getTypeForExpression(context.bindingContext(), loopRange)
 
     fun isForOverRange(): Boolean {

js/js.translator/testData/box/expression/for/forIteratesOverLiteralRange.kt

@@ -47,6 +47,19 @@ fun box(): String {
         sLong += i
     assertEquals(55L, sLong)
 
+    // KT-22376
+    global = ""
+    for (s in "AB")
+        global += s
+    assertEquals("AB", global)
+
+    for (s in (("CD")))
+        global += s
+    assertEquals("ABCD", global)
+
+    for (s in (("EF")))
+        global += s
+    assertEquals("ABCDEF", global)
 
     return "OK"
 }