java completion: don't use statistics when completing a super method call

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

@@ -0,0 +1,10 @@
+import java.lang.Object;
+import java.lang.Override;
+import java.util.HashMap;
+
+class Foo extends HashMap {
+  @Override
+  public Object get(Object key) {
+    pu<caret>
+  }
+}