IDEA-69648 Complete Current Statement: Correct 'for' completion

Provided completion for standalone 'for' keyword

java/java-tests/testData/codeInsight/completeStatement/ForStatementGeneration.java

@@ -0,0 +1,5 @@
+public class Foo {
+    void test(int i) {
+        for<caret>
+    }
+}

java/java-tests/testData/codeInsight/completeStatement/ForStatementGeneration_after.java

@@ -0,0 +1,6 @@
+public class Foo {
+    void test(int i) {
+        for (<caret>) {
+        }
+    }
+}

java/java-tests/testSrc/com/intellij/codeInsight/CompleteStatementTest.java

@@ -201,6 +201,8 @@ public class CompleteStatementTest extends EditorActionTestCase {
   }
 
   public void testNoUnnecessaryEmptyLineAtCodeBlock() throws Exception { doTest(); }
+
+  public void testForStatementGeneration() throws Exception { doTest(); }
   
   private void doTestBracesNextLineStyle() throws Exception {
     CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());