Fixed KT-5396 J2K: properly format "else if" on conversion

#KT-5396 Fixed

j2k/tests/testData/ast/ifStatement/elseIf.java

@@ -0,0 +1,16 @@
+//method
+void foo() {
+  if (a)
+    System.out.println("a")
+  else if (b)
+    System.out.println("b")
+  else
+    System.out.println("else")
+
+  if (c) {
+    System.out.println("c")
+  }
+  else if (d) {
+    System.out.println("d")
+  }
+}

j2k/tests/testData/ast/ifStatement/elseIf.kt

@@ -0,0 +1,14 @@
+fun foo() {
+    if (a)
+        System.out.println("a")
+    else if (b)
+        System.out.println("b")
+    else
+        System.out.println("else")
+
+    if (c) {
+        System.out.println("c")
+    } else if (d) {
+        System.out.println("d")
+    }
+}