IDEA-90142 Do not propose contant names after '@'

java/java-tests/testData/codeInsight/completion/normal/OnlyAnnotationsAfterAt2_after.java

@@ -0,0 +1,12 @@
+import static BeanUtil.A.NOT_NULL;
+class BeanUtil {
+  public static class A {
+    public static final Object NOT_NULL = null;
+  }
+  @NotNull<caret>
+  String foo() {
+    return null;
+  }
+}
+
+@interface NotNull {}