if some no-statistic suggestions are highly-preferred (e.g. local vars), move statistically preferred variants under them (IDEA-98303)

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

@@ -0,0 +1,8 @@
+public class Foo {
+  
+  void foo(PsiElement psiElement) {
+    psiEl<caret>
+  }
+}
+
+class PsiElement {}