Java intention: Quick fix for error "foreach not applicable to type java.util.Iterator" - handle comments and take care of empty block when copying the loop body (IDEA-124751)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceIteratorForEachWithFor/afterCodeBlockBody.java

@@ -6,6 +6,7 @@ public class CodeBlockBody {
         for (Iterator<Integer> it2 = it1; it2.hasNext(); ) {
             Integer integer = it2.next();
             System.out.println(integer + " a");
+            // a comment
             System.out.println(integer + " b");
         }
     }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceIteratorForEachWithFor/afterEmptyBlockBody.java

@@ -0,0 +1,10 @@
+// "Replace 'for each' loop with iterator 'for' loop" "true"
+import java.util.Iterator;
+
+public class EmptyBlockBody {
+    void foo(Iterator<Integer> it) {
+        for (Iterator<Integer> it1 = it; it1.hasNext(); ) {
+            Integer integer = it1.next();
+        }
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceIteratorForEachWithFor/beforeCodeBlockBody.java

@@ -5,6 +5,7 @@ public class CodeBlockBody {
     void foo(Iterator<Integer> it,Iterator<Integer> it1) {
         for (Integer integer : <caret>it1) {
             System.out.println(integer + " a");
+            // a comment
             System.out.println(integer + " b");
         }
     }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceIteratorForEachWithFor/beforeEmptyBlockBody.java

@@ -0,0 +1,8 @@
+// "Replace 'for each' loop with iterator 'for' loop" "true"
+import java.util.Iterator;
+
+public class EmptyBlockBody {
+    void foo(Iterator<Integer> it) {
+        for (Integer integer : <caret>it) {}
+    }
+}