KT-597 Type inference failed

Resolution rules changed: now autocast and non-autocast candidates are judged together

compiler/testData/checkerWithErrorTypes/quick/regressions/kt597.jet

@@ -0,0 +1,20 @@
+//KT-597 Type inference failed
+// +JDK
+
+fun <T> Array<T>?.get(i: Int) : T {
+    if (this != null)
+        return this.get(i) // <- inferred type is Any? but &T was excepted
+    else throw NullPointerException()
+}
+
+fun Int?.inc() : Int {
+    if (this != null)
+        return this.inc()
+    else
+        throw NullPointerException()
+}
+
+fun test() {
+   var i : Int? = 10
+   var <!UNUSED_VARIABLE!>i_inc<!> = <!UNUSED_CHANGED_VALUE!>i++<!> // <- expected Int?, but returns Any?
+}