don't suggest to complete class literals not in expressions

java/java-tests/testData/codeInsight/completion/normal/OnlyClassesInExtends.java

@@ -0,0 +1,5 @@
+class Bar {
+  static class Inner {}
+}
+
+public class Foooo extends Bar.<caret>

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

@@ -744,6 +744,11 @@ public class NormalCompletionTest extends LightFixtureCompletionTestCase {
     assertStringItems 'final', 'finalize'
   }
 
+  public void testOnlyClassesInExtends() throws Throwable {
+    configure()
+    assertStringItems 'Inner'
+  }
+
   public void testPrimitiveTypesInForLoop() throws Throwable { doPrimitiveTypeTest() }
   public void testPrimitiveTypesInForLoop2() throws Throwable { doPrimitiveTypeTest() }
   public void testPrimitiveTypesInForLoop3() throws Throwable { doPrimitiveTypeTest() }