preselect what was completed last, use statistics count only for sorting (IDEA-92045)

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

@@ -0,0 +1,7 @@
+import java.util.Set;
+
+public class Foo {
+  void foo(Set<String> set) {
+    set.ad<caret>x
+  }
+}