KT-893 Need to support another form of for loop

src/org/jetbrains/jet/j2k/visitors/StatementVisitor.java

@@ -128,8 +128,7 @@ public class StatementVisitor extends ElementVisitor {
         && condition != null
         && update != null
         && update.getChildren().length == 1
-        && update.getChildren()[0] instanceof PsiPostfixExpression
-        && ((PsiPostfixExpression) update.getChildren()[0]).getOperationTokenType() == JavaTokenType.PLUSPLUS
+        && isPlusPlusExpression(update.getChildren()[0])
         && operationTokenType != null
         && (operationTokenType == JavaTokenType.LT || operationTokenType == JavaTokenType.LE)
         && initialization.getFirstChild() != null
@@ -160,6 +159,10 @@ public class StatementVisitor extends ElementVisitor {
     }
   }
 
+  private static boolean isPlusPlusExpression(@NotNull PsiElement psiElement) {
+    return (psiElement instanceof PsiPostfixExpression && ((PsiPostfixExpression) psiElement).getOperationTokenType() == JavaTokenType.PLUSPLUS)
+      || (psiElement instanceof PsiPrefixExpression && ((PsiPrefixExpression) psiElement).getOperationTokenType() == JavaTokenType.PLUSPLUS);
+  }
 
   @Override
   public void visitForeachStatement(@NotNull PsiForeachStatement statement) {

testData/ast/issues/file/kt-893.jav

@@ -0,0 +1,9 @@
+package demo;
+
+class Test {
+  void test() {
+    for(int i = 0; i < 10; ++i) {
+      System.out.println(i)
+    }
+  }
+}

testData/ast/issues/file/kt-893.kt

@@ -0,0 +1,8 @@
+package demo
+open class Test() {
+open fun test() : Unit {
+for (i in 0..(10 - 1)) {
+System.out?.println(i)
+}
+}
+}