Support calling methods annotated with PolymorphicSignature

#KT-14416 Fixed
 #KT-26165 Fixed

compiler/testData/codegen/box/polymorphicSignature/anonymousSubclass.kt

@@ -0,0 +1,37 @@
+// !LANGUAGE: +PolymorphicSignature
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND: JVM_IR
+// FULL_JDK
+// SKIP_JDK6
+// WITH_RUNTIME
+
+import java.lang.invoke.MethodHandles
+import java.lang.invoke.MethodType
+import java.lang.invoke.WrongMethodTypeException
+
+interface I {
+    fun get(): String
+}
+
+class C {
+    fun run(i: I): String = i.get()
+}
+
+fun box(): String {
+    val mh = MethodHandles.lookup().findVirtual(
+        C::class.java, "run",
+        MethodType.methodType(String::class.java, I::class.java)
+    )
+
+    try {
+        return mh.invokeExact(C(), object : I {
+            override fun get(): String = "Fail"
+        }) as String
+    } catch (e: WrongMethodTypeException) {
+        // OK
+    }
+
+    return mh.invoke(C(), object : I {
+        override fun get(): String = "OK"
+    }) as String
+}