KT-5692 Java to Kotlin conversion: convert int range loops in reverse order + a few more improvements

#KT-5692 Fixed

j2k/testData/fileOrElement/for/falseArrayIndicesReversed2.kt

@@ -0,0 +1,7 @@
+public class A {
+    fun foo(array: Array<String>) {
+        for (i in array.size() - 2 downTo 0) {
+            System.out.println(i)
+        }
+    }
+}