KT-5287 J2K: Convert class with private constructor and static functions to "object" instead of class with "class object"

#KT-5287 Fixed

j2k/testData/fileOrElement/for/withContinueAndLabels.kt

@@ -1,28 +1,26 @@
 // ERROR: The label '@OuterLoop1' does not denote a loop
-public class TestClass {
-    companion object {
-        public fun main(args: Array<String>) {
-            var i = 1
-            @OuterLoop1 @OuterLoop2 while (i < 1000) {
-                var j = 1
-                @InnerLoop while (j < 100) {
-                    if (j == 3) {
-                        j *= 3
-                        continue@InnerLoop
-                    }
-                    if (i == j) {
-                        i *= 2
-                        continue@OuterLoop1
-                    }
-                    System.err.println(j)
-                    if (j == 9) {
-                        j *= 3
-                        continue
-                    }
+public object TestClass {
+    public fun main(args: Array<String>) {
+        var i = 1
+        @OuterLoop1 @OuterLoop2 while (i < 1000) {
+            var j = 1
+            @InnerLoop while (j < 100) {
+                if (j == 3) {
                     j *= 3
+                    continue@InnerLoop
                 }
-                i *= 2
+                if (i == j) {
+                    i *= 2
+                    continue@OuterLoop1
+                }
+                System.err.println(j)
+                if (j == 9) {
+                    j *= 3
+                    continue
+                }
+                j *= 3
             }
+            i *= 2
         }
     }
 }