java completion: prefer break/continue in likely positions inside loops (IDEA-156192)

java/java-impl/src/com/intellij/codeInsight/completion/PreferByKindWeigher.java

@@ -177,6 +177,11 @@ public class PreferByKindWeigher extends LookupElementWeigher {
           return MyResult.probableKeyword;
         }
       }
+      if ((PsiKeyword.BREAK.equals(keyword) || PsiKeyword.CONTINUE.equals(keyword)) &&
+          PsiTreeUtil.getParentOfType(myPosition, PsiLoopStatement.class) != null &&
+          isLastStatement(PsiTreeUtil.getParentOfType(myPosition, PsiStatement.class))) {
+        return MyResult.probableKeyword;
+      }
       if (PsiKeyword.ELSE.equals(keyword) || PsiKeyword.FINALLY.equals(keyword)) {
         return MyResult.probableKeyword;
       }

java/java-tests/testData/codeInsight/completion/normalSorting/PreferContinueInsideLoops.java

@@ -0,0 +1,9 @@
+import javax.swing.*;
+
+class A extends JPanel {
+    void f(int color) {
+        for (int i=0;i<10;i++) {
+            if (i%2==0) co<caret>
+        }
+    }
+}

java/java-tests/testSrc/com/intellij/codeInsight/completion/NormalCompletionOrderingTest.groovy

@@ -304,6 +304,10 @@ public class NormalCompletionOrderingTest extends CompletionSortingTestCase {
     checkPreferredItems 0, "return", "registerKeyboardAction"
   }
 
+  public void testPreferContinueInsideLoops() {
+    checkPreferredItems 0, "continue", "color", "computeVisibleRect"
+  }
+
   public void testPreferModifiers() {
     checkPreferredItems(0, "private", "protected", "public");
   }