don't try to complete anonymous outer class method references (IDEA-CR-13773)

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

@@ -226,6 +226,8 @@ public class FunctionalExpressionCompletionProvider extends CompletionProvider<C
 
     boolean first = true;
     for (PsiClass psiClass : instanceClasses) {
+      if (!first && psiClass.getName() == null) continue;
+
       for (PsiMethod psiMethod : psiClass.getMethods()) {
         if (!psiMethod.hasModifierProperty(PsiModifier.STATIC) &&
             hasAppropriateReturnType(expectedReturnType, psiMethod) &&

java/java-tests/testData/codeInsight/completion/smartType/NoAnonymousOuterMethodReference.java

@@ -0,0 +1,15 @@
+class Outer {
+  void foo2(int a){
+    new Object() {
+      void run(int a) {
+        class Inner {
+          void bar() {
+            Runnable r = fo<caret>
+          }
+        }
+      }
+
+      void foo() {}
+    };
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/completion/SmartType18CompletionTest.java

@@ -147,6 +147,7 @@ public class SmartType18CompletionTest extends LightFixtureCompletionTestCase {
   public void testStaticMethodReference() { doTest(false); }
 
   public void testOuterMethodReference() { doTest(true); }
+  public void testNoAnonymousOuterMethodReference() { doAntiTest(); }
 
   public void testMethodReferenceOnAncestor() { doTest(true); }