AddJavadocIntention: disable at field initializers

Add JavaDoc was available at initializer in some rare cases, e.g. "String foo = b<caret>ar;" (initializer is a simple reference), which was inconsistent and confusing (will the action add JavaDoc to "foo" or to "bar"?

java/java-impl/src/com/intellij/codeInsight/intention/impl/AddJavadocIntention.java

@@ -25,6 +25,9 @@ public class AddJavadocIntention extends BaseElementAtCaretIntentionAction imple
         element instanceof PsiJavaCodeReferenceElement ||
         element instanceof PsiJavaModuleReferenceElement) {
       PsiElement targetElement = PsiTreeUtil.skipParentsOfType(element, PsiIdentifier.class, PsiJavaCodeReferenceElement.class, PsiJavaModuleReferenceElement.class);
+      if (targetElement instanceof PsiVariable && PsiTreeUtil.isAncestor(((PsiVariable)targetElement).getInitializer(), element, false)) {
+        return false;
+      }
       if (targetElement instanceof PsiJavaDocumentedElement &&
           !(targetElement instanceof PsiTypeParameter) &&
           !(targetElement instanceof PsiAnonymousClass)) {

java/java-tests/testData/codeInsight/addJavadoc/beforeFieldAtInitializer.java

@@ -0,0 +1,8 @@
+// "Add Javadoc" "false"
+
+class Test {
+
+  String foo = "xyz";
+  String bar = f<caret>oo;
+
+}