Cleanup (test moved to a correct location)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting8/MethodReferences.java

@@ -0,0 +1,12 @@
+class C {
+  interface Simplest {
+    void m();
+  }
+  void simplest() { }
+  void use(Simplest s) { }
+
+  void test() {
+    Simplest simplest = this::simplest;
+    use(this::simplest);
+  }
+}