8143852: Implement type variable renaming for functional interface most specific test

Reviewed-by: mcimadamore, vromero

langtools/test/tools/javac/lambda/MostSpecific26.java

@@ -0,0 +1,20 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8143852
+ * @summary Most specific inference constraints derived from intersection bound
+ * @compile/fail/ref=MostSpecific26.out -XDrawDiagnostics MostSpecific26.java
+ */
+class MostSpecific26 {
+    interface F1<T> { <X extends Iterable<T> & Runnable> Object apply(T arg); }
+    interface F2 { <Y extends Iterable<Number> & Runnable> String apply(Integer arg); }
+
+    static <T> T m1(F1<T> f) { return null; }
+    static Object m1(F2 f) { return null; }
+
+    static String foo(Object in) { return "a"; }
+
+    void test() {
+        m1(MostSpecific26::foo);
+    }
+
+}