Add test for cacheResult flag

Author: q-ata

tests/init/pos/recursive.scala

@@ -0,0 +1,9 @@
+class A {
+  def p(cb: Int => Int): Int = cb(0)
+
+  val q: List[Int] = {
+    def f(x: Int): Int => Int = y => p(f(y))
+    List(1, 2).map(f(3))
+  }
+  val n: Int = 4
+}