TEST: test for default parameters

(cherry picked from commit 7999d68d812aedd5863f04b7fd2171e284b8f332)

backend.native/tests/codegen/function/defaults3.kt

@@ -0,0 +1,12 @@
+fun foo(a:Int = 2, b:String = "Hello", c:Int = 4):String = "$b-$c$a"
+fun foo(a:Int = 3, b:Int = a + 1, c:Int = a + b) = a + b + c
+
+fun main(arg:Array<String>){
+    val a = foo(b="Universe")
+    if (a != "Universe-42")
+        throw Error()
+
+    val b = foo(b = 5)
+    if (b != (/* a = */ 3 + /* b = */ 5 + /* c = */ (3 + 5)))
+        throw Error()
+}