Generate compareTo() properly

Take into account:
1) resolved call to compareTo (instead of always calling Comparable's method)
2) types of both caller and callee, when primitive, to avoid wrong casting
(instead of always using caller's type)

 #KT-3078 Fixed

compiler/testData/codegen/operatorConventions/compareTo/longInt.kt

@@ -0,0 +1,10 @@
+fun checkLess(x: Long, y: Int) = when {
+    x >= y    -> "Fail $x >= $y"
+    !(x < y)  -> "Fail !($x < $y)"
+    !(x <= y) -> "Fail !($x <= $y)"
+    x > y     -> "Fail $x > $y"
+    x.compareTo(y) >= 0 -> "Fail $x.compareTo($y) >= 0"
+    else -> "OK"
+}
+
+fun box() = checkLess(-123456789123.toLong(), 0)