Support default arguments and varargs for callable references

#KT-8834
 #KT-19869
 #KT-25514

compiler/testData/codegen/box/callableReference/varargAndDefaults/inline.kt

@@ -0,0 +1,9 @@
+// !LANGUAGE: +NewInference
+// IGNORE_BACKEND: JS, JS_IR, JVM_IR
+
+fun foo(vararg l: Long, s: String = "OK"): String =
+        if (l.size == 0) s else "Fail"
+
+inline fun bar(f: () -> String): String = f()
+
+fun box(): String = bar(::foo)