ScriptName now returns FqName, fully qualified with package name. Update usages and convert to internal format as needed.

compiler/testData/script/fib.pkg.ktscript

@@ -0,0 +1,11 @@
+package kotlin.scripting.fibonacci
+// this script expected parameter num : Int
+
+fun fib(n: Int): Int {
+    val v = if(n < 2) 1 else fib(n-1) + fib(n-2)
+    System.out.println("fib($n)=$v")
+    return v
+}
+
+System.out.println("num: $num")
+val result = fib(num)