Rename test data folder according to the new test naming convention.

compiler/testData/loadJava/MethodReferencesOuterClassTP.kt

@@ -0,0 +1,7 @@
+package test
+
+public class MethodReferencesOuterClassTP<P>() : java.lang.Object() {
+    public class Inner() : java.lang.Object() {
+        public fun f<Q : P>() {}
+    }
+}